= SS. SS = SS SS SS ne SS SS SSS SN SS SS SSS . Soke oN ~ ~ SON SSS SSS SSS ERR SN SSS SSE SSss7“7 SS SSN “i SSESV“ ms = SESS . S HS AS ~ > SS SSS SS — S SAS SS ~ oe a4 5 a a 4 Apa heh l Ga re Ne ee hs Mi aha es AMOR ne ae pe ae > Fe: Digitized by the Internet Archive in 2022 with funding from Princeton Theological Seminary Library https://archive.org/details/historyofmodernpOOlvyb History of Modern Philosophy in France History of Modern BU esGR BY in France BY LUCIEN LEVY-BRUHL MATTRE DE CONFERENCES IN THE SORBONNE, PROFESSOR IN THE ECOLE LIBRE DES SCIENCES POLITIQUES REPRINT EDITION . CHICAGO LONDON THE OPEN COURT PUBLISHING COMPANY 1924 COPYRIGHT BY Tur Open Court PuBLISHING Co. CHICAGO, U.S. A. 1899 All rights reserved. Printed in U. S. A. NABERS & CO-CHICACO edad Dane U GID: A book ought to speak for itself, and the brief- est prefaces are the best. Accordingly, I shall restrict myself to the few words indispensable to the purpose of indicating the object and the char- acter of this work. Given the intention of writing a History of Modern Philosophy in France, it was natural to begin it with Descartes, since by general consent Descartes opened a period in the history of philo- sophic thought, and this not simply for France, but for the world at large. This History does not claim to be complete— that is to say, it does not consider all who have treated philosophical subjects in France from the beginning of the seventeenth century down to our days. Frequently, philosophers of lower rank and only moderate originality are not mentioned in it at all. The author did not wish to burden his book, already large enough, with a mass of neces- sarily dry and uninteresting information regarding philosophers who are little known, and deservedly so. And above all, he did not intend to write a v vi PREFACE. work of erudition, but a history. Now, philos- ophers without marked originality—those, for instance, who were simply disciples of the masters— have indeed their value in the eyes of that erudi- tion which wishes to know all there is to be known of a certain epoch. But their value is slight in the eyes of the historian. For he does not propose merely to perpetuate facts and dates; such infor- mation is but the raw material for his work, which consists chiefly in grasping the connection of facts, and in deducing the laws of the development of ideas and doctrines. This is why he must concen- trate his attention upon the really representative men, and upon works which ‘‘have had a posterity.’’ While we have neglected the philosophical writ- ers whose influence has been slight in the evolution of French thought, there are others, on the con- trary, to whom we have given much space, although they are not usually grouped with the philosophers ped ““by profession. Such are, for example, Pascal, Fontenelle, Voltaire, Renan, etc. We have had very strong reasons for this. Is it not too narrow a conception of the history of philosophy to see in it exclusively the logical evolution of successive sys- tems? Doubtless this is one way of looking at it; but we can understand, also, that philosophic thought, even while having its especial and clearly PREFACE. Vil limited object, is closely involved in the life of each civilisation, and even in the national life of every people. In every age it acts upon the spirit of the times, which in turn reacts upon it. In its develop- ment it is solidary with the simultaneous devel- opment of the other series of social and intellectual phenomena, of positive science, of art, of religion, of literature, of political and economic life; in a word, the philosophy of a people is a function of its history. For instance, philosophic thought in France for the past two centuries bears almost alto- gether, though indirectly, upon the French Revolu- tion. In the eighteenth century it is preparing and announcing it; in the nineteenth it is trying in part to check and in part to deduce the conse- quences of it. It is proper, therefore, to introduce into our his- tory of modern philosophy in France, along with the authors of systems distinctly recognised as such, those who have tried under a somewhat different form to synthesise the ideas of their time, and who have modified their direction, sometimes profoundly. Would that be a faithful history of philosophic thought in France which should exclude, apart from the names cited above, those of Montesquieu, Diderot, Rousseau, and Joseph de Maistre? The question is not, as it seems to me, whether they Vill PREFACE. should have a place, but what that place shall be? The reader will see that we have not been satisfied to take half steps, and the question has been settled in this volume in the most liberal spirit. In closing, there remains the agreeable duty of expressing my best thanks, first of all, to the Open Court Publishing Company which offered a most kind and generous hospitality to this foreign work, then to Miss G. Coblence, the translator, and to Professor W. H. Carruth, of the University of Kansas, for his thorough revision of the translation. PARIS, August, 1899. L. L.-B. TA BIRO R GO NTN TS CHAPTER I PAGE DESCARTES - - - - ° - . I CHAPTER II CARTESIANISM.—MALEBRANCHE - . 2 38 CHAPTER III PASCAL s - - - ° 3 re CHAPTER IV BAYLE.—FONTENELLE - : - - : 1077), CHAPTER V MONTESQUIEU - - - - ° - 139 CHAPTER VI VOLTAIRE - - - : = ° 2 169 CHAPTER VII THE ENCYCLOPDISTS - . - a - 207 CHAPTER VIII ROUSSEAU . - - - ° - 236 CHAPTER IX CONDILLAC~ - - - - : : - 271 CHAPTER X CONDORCET - - - - - - 288 CHAPTER XI Tue IpgOLOGIsTS—THE TRADITIONALISTS - - 303 ix x TABLE OF CONTENTS CHAPTER XII MAINE DE BIRAN.—COUSIN AND ECLECTICISM - 321 CHAPTER XIII THE SociaAL REFORMERS.—AUGUSTE COMTE - - 352 CHAPTER XIV RENAN.—TAINE - = : : : : a7 CHAPTER XV THE CONTEMPORARY MOVEMENT IN FRENCH PHILOSOPHY 436 CHAPTER XVI CONCLUSION - - - - - - 468 BIBLIOGRAPHY : * - . ~ - 483 INDEX : . . . - = - 495 Chaat DESCARTES. WITH Descartes a new period of modern philos- ophy begins. It is not, indeed, a beginning ina literal sense: there is no such thing in the history of ideas, nor elsewhere. Descartes, who came after the great scientific and philosophical illumination of the sixteenth century, had profited largely by it. He owed much to the Italian Renaissance, and not less to the Renaissance in France and in England. He was acquainted with the discoveries of contem- porary men of science, such as Galileo, Torricelli, and Harvey. Even scholastic philosophy, which he was to combat, left a lasting impression upon his mind. However, after we have considered all the influ- ences, both of the past and of the present, which were exercised upon him, the originality of Descartes shines out all the more conspicuously, and we see the more clearly that he initiated a new philosophic method. Hegel called him a hero, and this hyper- bole may in a certain sense be justified. Descartes had, indeed, no vocation for martyrdom. But nature had endowed him with that higher sort of courage which is love of truth and devotion to sci- ence; and if the name of hero is due the men whose I 2 MODERN PHILOSOPHY IN FRANCE. exertions have laid open new paths for human thought, Descartes is undoubtedly entitled to the name. The attitude of Descartes toward the philos- ophers who preceded him is remarkable,—he delib- erately ignores them. Although well acquainted with their works, he builds his own system as if he knew nothing of them. He wishes to depend solely — on his own method and reason. Not that he per- sonally holds in contempt either the ancient or the modern philosophers. He is not so presumptuous as to believe that his mind is superior to theirs. He even acknowledges that many truths had been dis- covered before he created his method, but these truths he does not wish to accept on tradition. He is determined to discover them for himself. By means of his method he proposes to obtain these truths, no longer mixed pell-mell with the mass of doubtful or erroneous opinions, but set in their right places, and accompanied with their proofs. Thus only do they become valuable and useful. For a truth, when isolated, sporadic, and floating and un- connected with the truths that have gone before it, and consequently powerless to develop those that are to come after it, is of slight interest in itself. To acquire such a truth is not worth the trouble we must take in order to understand ancient books, and the time we lose in learning the ancient languages. All this time were better employed in training our reason to grasp the necessary concatenation of truths as deducible one from another. DESCARTES. 3 This is already a first motive, and a quite suffi- cient one, for Descartes to dispense with erudition and to take no account of traditional doctrine. But he has another and more weighty one. He seeks not what is probable, but what is true. Now the first requisite in finding what is true he takes to be the casting aside of the philosophy taught in his time, which contented itself with probability and gave no satisfactory demonstrations. Therefore, though he occasionally retains the vocabulary of scholasticism (for instance in the greater part of his Méditations), though he even borrows some of his matter from, it (for instance, in the ontological argument, in the theory of continuous creation), nevertheless Descartes broke distinctly and com- pletely with the method and spirit of the philos- ophy which had been handed down from antiquity through the vicissitudes of the Middle Ages and the struggles of the Renaissance. Even what he seems to borrow from it, he really transforms. Cartesian- ism not only has a positive meaning, which we shall presently study, but it has to begin with a critical function, and proposes first of all to do away witha philosophical system which, appealing to substan- tial forms and occult causes, claimed to explain everything and could demonstrate nothing. There is accordingly something more in his atti- tude to his predecessors than a mere protest against the authoritative method, —a protest which had already been raised by eloquent voices in the six- teenth century and even earlier. We have in it, in 4 MODERN PHILOSOPHY IN FRANCE. fact, a set determination to consider the generally accepted philosophy as null and void, and to replace it with another which shall owe nothing to the former. A bold undertaking, not merely of a reformative but of a revolutionary nature. In Eng- land, Bacon, while combating the Scholastic Phi- losophy in the matter of experimental method, nevertheless derived from it his conception of phys- ical reality. Hobbes, however much he may have freed himself from traditional metaphysics, is never- theless the heir of the later great English scholastics. In Germany likewise, the genius of Leibniz is one of conservatism as well as of innovation. He openly disapproves of Descartes’s excessive severity to- ward scholasticism, of which, for his part, he pre- serves a great deal, in his doctrine as well as in his terminology. Therefore we see his successor Wolf restoring, so to speak, a new scholastic system, based on the philosophy of Leibniz. It was this philos- ophy that Kant imbibed; and later on, after Kant’s Krittk, akind of new scholasticism appeared (in the school of Hegel for instance), indisputably related to that of the Middle Ages. Thus, in Germany, the thread of philosophical tradition was never entirely broken. In France, owing to Descartes, the case was altogether different. The Cartesian philosophy aimed at nothing less than the utter destruction of its rival. It prevailed; and, as early as the latter part of the seventeenth century, the victory was com- plete. This was both favorable and unfavorable to DESCARTES. 5 the progress of French philosophy. Of course, it was no small advantage for the latter to free itself from the prestige of antiquity, from the tyranny of scholasticism, to regain its full independence, and to draw its inspiration freely from the spirit of the mathematical and physical sciences, the increasing power of which was a genuinely new element in the life of mankind. To this the success of Cartesian- ism, and the fact that its method persisted, even after the doctrine was discarded, bear sufficient testimony. But on the other hand, certain dis- pleasing characteristics of French philosophy in the eighteenth century may, at least in some measure, have originated in this breaking with tradition. A taste for abstract and too simple solutions, a con- viction that it is sufficient to argue soundly upon evident principles in order to discover the truth, even in the most complex problems of social life— in short, a lack of historical spirit, with which the French philosophy of that period has been re- proached—all these faults are owing in some meas- ure to the spirit of Cartesianism. Certain it is that Descartes and his followers, in their contest with tradition, failed to appreciate its value and necessary function. Nothing is so significant in this respect as the way in which these writers speak of history. As it is not a science, it cannot possibly be the basis of a school. It may entertain us, but it cannot really teach us. It is even liable to beget false ideas, and to be an encouragement to extravagant undertak- 6 MODERN PHILOSOPHY IN FRANCE, ings. And, logically speaking, whatever rests on historical claims only is insufficiently justified. This last maxim may, in practice, have most serious con- sequences. Descartes foresaw the attempt that would be made to extend its application to political and social problems. He therefore openly disclaims beforehand this application, which he personally refuses to make. Yet if he wishes us to abstain from criticising existing institutions, it is in his case, as in Montaigne’s, for reasons of utility alone. One can easily imagine circumstances in which considera- tions of utility would favor the other side. It is, then, a mere question of expediency. This tendency to claim that reason alone ought to be the basis of opinion, because reason alone can demonstrate it to be true, and the consequent ten- dency to make free use of rational criticism, appear in the history which Descartes gives us of his mind. Of all that he learned at school, nothing satisfied him except mathematics. Hardly had he freed himself from the sway of his masters (the best, he says, there were then in Europe), when he deliberately set about forgetting their teaching. He speaks only with irony of the various sciences, or so-called sciences: medicine, law, philosophy, as they were taught in his day. He coolly turns his back on belles lettres, and holds history in contempt. Geom- etry alone found favor in- his eyes; still he won- dered greatly at its being used only as an object of amusement for the curious, and that ‘‘on so firm a basis nothing more lofty had been established.’’ DESCARTES. vf The ground was now cleared; Descartes could begin to build. According to some, Descartes is first of all a man of science, and secondly a philosopher. Ac- cording to others, the philosopher in him predomi- nates over the man of science. In point of fact, philosophy and science were not separated in Des- cartes’s view. He seeks to establish the system of truths accessible to man—a system which he con- ceived as unique, and which may be figured as an endless chain. And he seeks it in order to find the means of living as uprightly and happily as possible. Thus the end which Descartes has in view is a right- eous and happy life: wherein he agrees with the philosophers of his time, and, we may also say, of all times. In order to attain to this righteous and happy life, leaving out of account the teachings of religion, Descartes sees no sure way but the possession of truth or science. Now science, in its turn, rests on metaphysics, or primary philosophy, whence it derives its principles. Therefore Descartes proposes to bea metaphysician; but this he will be for the sake of science itself. Metaphysics is to him a road, but indeed a road of paramount importance, since all the rest depends upon the principles discovered therein. Besides, mathematics, physics, and other theoretical sciences are also roads, the terminal point lying in the applied sciences, to which they lead. ‘‘The whole of philosophy,’’ says Descartes, in the Pref- 8 MODERN PHILOSOPHY IN FRANCE. ace to the Principes de la Philosophie, ‘is like a tree, the roots of which are metaphysics; the trunk is the science of physics; and the branches shooting from that trunk are all the other sciences, which may be reduced to three main ones, viz., medicine, me- chanics, and ethics, by which last I mean the highest and most perfect ethics, which, since it presupposes a complete knowledge of the other sciences, is the supreme degree of wisdom.” Thus if Descartes is careful to make a distinction between the sphere of action and that of knowledge, and if, before undertaking the long and difficult task of seeking after truth, he provides himself with a ‘‘provisional’’ ethics, which he unquestioningly accepts from authority and custom, he nevertheless proclaims the principles of action to be dependent upon knowledge. It is the business of reason not only to enlighten, but also to guide us. Descartes, believing in the future progress of mankind, consid- ers it to be dependent on the development of the sciences. We even observe, in several passages, that the progress of ethics appears to him subordinate to that of mechanics and of medicine. But these in their turn depend for their advancement upon the establishment of a sound and rigorously demon- strated physical science. Thus, although science is not its own end, the fundamental problem of philoso- phy according to Descartes is finally reduced to the problem of the establishment of science. Now there is no breach of continuity between metaphysics and physics; on the contrary, there is DESCARTES. 9 a natural and necessary transition from the one to the other. Descartes attempted to build up a system by means of which one could proceed uninterruptedly from the first principles of cognition and of being, in a word, from God, down to the most specific scien- tific propositions of physiology or of ethics, without one link missing in the chain. A bold conception, which dominates the whole system and is inseparable from the famous method of Descartes. Up to this point mathematics alone appeared to Descartes worthy of being called a science. It differs from everything else he had learned in the perfect lucidity of its principles, in the rigorous dem- onstration of its propositions, and in the inevitable sequence of its truths. But to what does it owe these characteristics, if not to the method from which mathematicians make it a rule never to depart? Therefore, in order to establish the science or philos- ophy sought by Descartes, it was sufficient to find a method that should be to philosophy what the method of mathematical deduction is to arithmetic, algebra and geometry. To apply to that universal science conceived by Descartes the method so effectively employed in the above-mentioned sciences would evidently be the simplest solution of the problem proposed. But this solution is impracticable. The mathemat- ical method, as we see it practiced in “‘the analysis of the ancients and the algebra of the moderns’’ is a special method, limited to the study of figures in geometry, and confined in algebra to symbols and IO MODERN PHILOSOPHY IN FRANCE. rules which hamper the mind. _ How could one pass from these processes, which are especially adapted to particular sciences, to the general method required by general science or philosophy? Descartes would undoubtedly never have conceived such an audacious hope, had not a great discovery of his set him on this track. He had invented analytical geometry, or the method of expressing by means of equa- tions the properties of geometrical figures, or, inversely, of representing determinate equations by means of geometrical figures. In this way, Des- cartes substituted for the old methods, which were especially adapted to algebra and geometry as dis- tinct branches, a general method, applicable to what he called the ‘‘universal mathematical science,’’ viz., to the study of ‘‘the various ratios or propor- tions to be found between the objects of the mathe- matical sciences, hitherto regarded as distinct.’’ Not only did this discovery mark a decisive epoch in the history of mathematics, which it provided with an instrument of incomparable simplicity and power, but it furthermore gave Descartes a right to hope for the philosophical method he was seeking. Ought not a last generalization to be possible, by means of which the method he had so happily dis- covered should become applicable, not only to the ‘‘universal mathematical science,’’ but also to the systematic combination of all the truths which our finite minds may permit us to attain? Thus was formed in Descartes’s mind the method which he summed up in the Dzscours de la Méthode, DESCARTES. II and which was destined in his plan to replace the useless and sterile ancient logic. It is inexpedient here to explain these rules minutely. We must, however, observe that the first one, ‘‘Never to accept a thing as true which I do not clearly know to be such,’’ is not, properly speaking, a precept of method. Such precepts are set forth in a subse- quent set of rules, where Descartes successively pre- scribes analysis for dividing difficulties into parts, and synthesis for constructing and expounding sci- ence. But the first rule is quite different. It does not Jay down a process to be used in order to dis- cover truth. It concerns method only in so far as method is not separated from science itself (and such indeed was Descartes’s meaning). If such is the case, the first step of method—or of science—must be to determine accurately by what mark we can recognize what is to be regarded as true, and what is to be set aside as being only probable or dubious. This mark is what we call evidence. This first rule may have been suggested to Descartes, as the others were, by mathematics. Even as in his method he generalized the processes used for mathematical re- searches and demonstrations, so in this formula he laid down the regulating principle to which this sci- ence owes its perfection, and which was also to be- come the regulating principle of the new philosophy. Thus the famous rule of ‘‘evidence’’ reaches far beyond the scope of a mere principle of method. Both from what it excludes and what it implies, it may be looked upon as the motto of the Carte- LZ MODERN. PHILOSOPHY IN FRANCE, sian philosophy. It rejects, to begin with, any knowledge grounded upon authority alone (except- ing the truths of religion). Even though Aristotle and all his commentators were agreed on one opin- ion, this would be no proof of its being true; and should it really chance to be so, the authority of Aristotle would count for nothing towards estab- lishing its standing in science. Nothing can be admitted in ‘science. but what 1sevident.- hi “a, nothing but what is so clear and plain as to leave no possible doubt, or is soundly deduced from prin- ciples which rest on such evidence. The whole sys- tem of scholasticism: metaphysics, logic, physics, thus stands irretrievably condemned zz toto. The so-called moral sciences, which cannot attain to a.de- gree of evidence comparable to that of mathematics, and which have to content themselves with more or less strong probability, are likewise rejected by the Cartesian formula; in fact, Descartes, as has already been observed, had but little esteem for history and erudition. But what makes this rule of paramount impor- tance is, that it establishes reason as supreme judge of what is false or true. Reason thus proclaims its own sovereign right to decide without appeal. What we are to think, to believe, and to do should be determined solely by evidence; and of that evi- dence reason alone is judge (except in the case of urgency compelling us to immediate action). It is true, reason being identical in all men, that such truth as becomes evident to one of them becomes DESCARTES. 13 so to all other men likewise. Therefore the assent given to evidence by one mind is by implication equivalent to the universal consent of mankind; so that the individual reason which distinguishes be- tween true and false is precisely the universal feature in every man. Nevertheless, Descartes felt the danger that lay in his formula. He foresaw the very serious mis- understandings to which it might give rise, and he endeavored to prevent these by taking multifarious precautions. First of all, the truths of religion are carefully set apart and withdrawn from the criticism of reason. They donot fall under its jurisdiction. It is not ours to examine them, but to believe them. According to Descartes, we must seek neither to adapt them to our reason, nor to adapt our reason to them. They belong to another domain. Then Descartes makes a distinction between the sphere of knowledge and that of conduct; he submits to provisional ethics, which is to be replaced by defini- tive ethics only when science is completed, that is to say, in a still remote future. Moreover, even in the province of speculative thought Descartes refrains from touching upon political and social questions. He censures ‘‘those blundering and restless humours’’ ever ready to propose unasked- for reforms. Thus, after moral and religious prob- lems, political problems in their turn are cautiously set aside. Where, then, shall the absolute sover- eignty of reason be exercised? In philosophy, in abstract sciences, in physics; in short, wherever 14 MODERN PHILOSOPHY IN FRANCE. men generally have no other interest but that of pure truth. Well-meant precautions these were, no doubt, but vain precautions, too. Let reason rule supreme over this apparently limited province, and by de- grees it will invade the others. If we allow it, as a principle, the right to decide without appeal between falsehood and truth, it soon will admit of no restrictions but those it sets of its own accord through the works of a Kant or of an Auguste Comte. In fact, French philosophy in the eight- eenth century was in the main an endeavor to apply the spirit of the Cartesian method to the very objects: politics, ethics, religion, which Descartes had carefully set apart. By holding nothing as true until I have evidence of its being so, do I not in advance deprive all historical rights of the means of securing recognition; do I not thereby summon all privileges, institutions, beliefs, and fortunes to produce their title deeds before the bar of reason? By solemnly paying homage to Descartes, the ‘‘ As- semblée Constituante’’ proved that the spirit of the Revolution was conscious of one of its chief sources. Being now in possession of his method, did not Descartes have all that was necessary to construct his philosophic system with absolute mathematical certainty? No, for in mathematics the foundation principles: axioms and definitions, are so plain and evident that no reasonable mind will question them. But philosophy had until his time been wanting in DESCARTES. 15 such principles, and the object which Descartes has in view is precisely to establish them. To attain this end, he first casts aside as false (at least provisionally) all the opinions which he has hitherto held as true, and which are only probable. In order to avoid tedious enumerations, he proposes to consider opinions from the point of view of their sources. ‘‘For instance,’’ says he, ‘‘having some- times found my senses deceitful, I will distrust all that they teach me. As I have sometimes erred with regard to very simple reasoning, I will distrust the results of even the most positive sciences. Lastly, I may suppose that an evil genius, who is all-pow- erful, takes delight in making me err, even when I believe I see the truth most plainly. Therefore, by a voluntary effort, which is always possible since I am free, I will suspend my judgment even in cases where the evidence seems to me irresistible. ‘‘Is there any proposition which is not affected by this ‘‘hyperbolical’’ doubt? There is one, and one only. Let my senses deceive me, let my rea- sonings be false, let an evil genius delude me con- cerning things which appear to me most certain; if Ivam) mistaken, it issbecause’)l),am,—-and' this truth “IT think, therefore I am,’’ cogito, ergo sum, is so self-evident and so certain that the most extrava- gant doubt of skeptics is unable to shake it.’’ Here then is the first principle of philosophy sought for by Descartes. And even as Archimedes asked only a standing-place to lift the world, so Descartes, having found a guid inconcussum, an indisputable | 16 MODERN PHILOSOPHY IN FRANCE. proposition, set to work to erect his whole system upon this foundation. However, if according to the custom bf philos- ophers we distinguish the sphere of knowledge from that of existence, this proposition, or, as it is called, Descartes’s cogito, is certainly first in the sphere of knowledge; for I may have doubts about whatever I may think, but about my thinking I can have no doubt, even in the very moment when I doubt. But in the sphere of existence the Absolute, that is, God, comes first. Therefore Descartes, as soon as he had established the cogzto, turned to demonstrating the existence of God. He knows that he thinks, but he also knows that he doubts, and therefore that he is imperfect; for not knowing instead of knowing is an imperfection. He therefore has an idea of perfection. Whence comes this idea? Descartes examines all the conjectures which may be made as to its origin; he eliminates them one after another as inadequate until one only remains, viz., that the idea of perfec- tion cannot have sprung from experience, that we could not have it if the all-perfect Being, that is, God, did not actually exist, and that therefore this idea is as ‘‘the stamp left by the workman upon his work.”’ Descartes was bound to demonstrate the exist- ence of God at the very outset. Otherwise, the sup- position of an evil genius, who was able to deceive him even when he conceived things with perfect clearness, would have cast suspicion upon all proposi- tions but the cogzto; the doubt which he himself DESCARTES. 197, had raised would have paralyzed him. In order to do away with such a supposition, Descartes at once proceeds to demonstrate the existence of an all- perfect God, who cannot possibly wish to deceive us. But is not this a syllogistic circle? If the plainest argument, in order to be accepted as valid, needs the guaranty of God, what will guarantee the argument intended to prove the existence of God? A syllogistic circle indeed, had not Descartes escaped from it with the help of the following reasons: God’s guaranty is necessary, not for the sake of the evidence, which is quite sufficient in itself so long as it lasts (whereof the cogito is a proof); but in order to assure me of the truth of propositions which I remember having admitted as evident without remembering for what reasons. It is necessary, in short, wherever memory inter- venes, but only in that case. Now if we have no need of memory to know that we think, neither do we need it to know that God exists. In spite of the syllogistic form which Descartes gave to the proof of the existence of God, this proof is rather intuitive than grounded on formal reasoning. In ‘the act of conceiving the idea of the All-perfect Being, I see at the same time the impossibility of His not existing. The existence of all other things is looked upon as only possible; but the existence of God appears as evidently necessary, being com- prised in the very notion of God. This is no argu- ment, but rather an immediate apprehension. It is, as Malebranche said shortly afterwards, a proof 18 MODERN PHILOSOPHY IN FRANCE. ‘‘from mere vision.’’ The syllogistic circle there- fore was only apparent. Descartes was right in establishing the existence of God immediately after the cogito. Henceforward he could in all confi- dence make use of the faculties given him by God, who never deceives. He only needed now to fol- low out his method carefully, and to link propo- sitions together in the requisite order, in order to arrive infallibly at the truth. Now, the requisite order is, to begin with things which are most general, simple, and easy to grasp; that is, with the primary principles from which the other truths are to be deduced. Physics therefore is not to be studied until metaphysics is well grounded. Acting upon this precept, Descartes first established the existence of an absolute and perfect Being, that is, God; for the same reason he now proceeds to ascertain the essence of the soul and of the body. To reach this end, his starting point is again the cogzfo. I think, lam; but what am I? A creature that thinks; that is to say, judges, remembers, feels, imagines, and wills; a being whose existence is not linked to any place, nor dependent upon any material thing. Descartes has just got out of his universal doubt by means of the cogzto. The only thing the existence of which he can maintain at this point is his own thought. Now, the existence of his thought does not appear to him to be neces- sarily linked to that of his body and dependent upon the latter. On the contrary, he may sup- DESCARTES. 19 pose that his body does not exist, and that the perception of the external world and of his own members is an illusion. He is even unable for the present to reject this supposition; he cannot do so till later on, and even then with some difficulty. Nevertheless, since he thinks, he is certain he exists.;| But, conversely, let. him) fora .moment suppose that he ceases to think; upon this suppo- sition he ceases to exist, although all external bodies and his own body should remain real. Therefore, the cognition of his own being, which is his thought, by no means depends on ma- terial things, the existence of which is still problem- atic. Therefore his whole nature is to think. ‘“You suppose,’’ some opponent said to Descartes, “‘that your own body does not exist, and you say that nevertheless you continue to think. But should your supposition prove true, that is to say, should your body and your brain be dis- solved, can you affirm that even then you would continue to think?’’ To which Descartes answered: ““I do not assert this,—at least not now. My present object is not to demonstrate the immortal- ity of the soul. This is a metaphysical question I am not now able to solve,—for I know only one fact as yet, viz., that I think (and also that God exists). The whole question I am examining is merely : ‘What am I?’ Now it appears from what has been said, that my existence is known to me as that of a being endowed with thought and endowed only with thought; for, whilst I am as 20 MODERN PHILOSOPHY IN FRANCE. certain as possible of the existence of my thought, the existence of anything else is still wholly doubt- fulto me. The existence of this thought may pos- sibly be actually connected with that of the brain. I know nothing about that. I am not discussing that for the present. One thing is certain: I know myself as a thought, and I positively do not know myself as a brain.’’ This is one of the leading features of the philos- ophy of Descartes, and one which may enable us to measure his influence, by comparing what had been thought before him with what was thought after him. The cogzto of Descartes displaced, so to speak, the axis of philosophy. To the ancients and to the scholastics (theology excepted), the thinking mind appeared inseparable from the universe, re- garded as the object of its thought, just as the soul itself was conceived to be the ‘‘substantial form’’ of the living body. According to Descartes, on the contrary, the existence of the thinking mind, far from being dependent on any other existing thing, is the essential condition of every other existence conceivable to us: for if I am certain of the ex- istence of anything but myself, with far better reason am I certain that I, who have that thought, am in existence. The only reality I cannot pos- sibly question is that of my own thought. Both the adversaries and the successors of Des- cartes started from this point. All the modern forms of idealism, so utterly different from the idealism of the ancients, have a common origin in DESCARTES. 21 the cogito. The tempered and prudent idealism of Locke, the Christian idealism of Malebranche, the skeptical idealism of Hume, the transcendental idealism of Kant, the absolute idealism of Fichte, and many other doctrines derived from these, which have appeared in our century, are all more or less closely related to the foundation principle of the Cartesian philosophy. Moreover, the conception of nature in modern science must also be connected with it. For, as we shall see farther on, when Des- cartes set thought, that is, the soul, so distinctly apart from everything extraneous to itself, in so doing he made necessary a new conception of force and life in the material world. Now, let us add to the Cartesian formula, ‘‘I am a thing which thinks,’’ the following principle, ‘‘ All that I conceive clearly and distinctly is true.’’ Then, since I conceive clearly and distinctly that the nature of the body and that of the soul have no attributes in common, therefore it is true that these two natures or substances are separated one from the other. Not only is there no need of my having any notion of the body in order to comprehend the soul, but also the soul has no need of the body in order to SxS Descartes, therefore, had a right to infer that ““the soul is more easily known than the body.’’ This does not mean that, according to his doctrine, psychology is an easier science than physics or physiology. Psychology as we conceive it has no place in the system of Descartes; there is at most 22 MODERN PHILOSOPHY IN FRANCE. a mere sketch of it in the Passions del’ Ame. But this maxim is metaphysical, not psychological. It means that there is no more evident knowledge than that which the soul has of itself, since there is none which it is more impossible to doubt; that the body, on the contrary, is known only representa- tively, and that, far from our being unable to doubt its existence, we cannot overcome such a doubt, when once raised, save by means of laborious and complicated reasonings. In order to make all this clearer still, let us re- member Descartes’s oft-repeated caution to “‘cast off all the impressions of the senses and imagina- tion, andtrust ‘to reason alonesjeplherewarcenet two kinds of evidence: one which tells us that the sun shines, that honey is sweet, that lead is heavy; and another which informs us that if equals be added to equals, the sums are equal. Only the latter proposition is self-evident; the former statements, in spite of any prepossession to the con- trary, are not so. The impressions of the senses are vivid, but confused; we cannot account for them, and nothing can warrant them to be true. The water which is warm to me seems cold to you. Cold and heat, as well as all other qualities per- taining to bodies, with the exception of extension, are not inherent in them; they are relative to the sentient subject. Therefore, if we think we know bodies by what our senses teach us of them, we fall into error, as will happen every time when, through overhastiness or prejudice, we form a judgment DESCARTES. 23 before the evidence is complete. For can I not have in a dream all the perceptions I now have, and be as firmly persuaded of their reality? But whether I am dreaming or waking, it is true that two and two are four, and it is trué that I, who think ‘so, am in existence. Thus, previous to philosophical reflection, noth- ing seems to us so well known as the body and its qualities, because we form images of them continu- ally and without any difficulty; whereas it is not easy for us to realize what the soul is, seeing that it is not an object for the imagination to grasp. The first task of the philosopher consists precisely in disengaging himself from the false light of the senses and seeking the true light of reason. It is an effort akin to the one demanded by Plato, when he termed philosophy the science of the invisible, and recom- mended the study of mathematics as a preparatory training. The body and the organs of the senses, far from making us acquainted with what really is, are a hindrance to the proper activity of the mind. Even matter, which we fancy our hands, eyes, ears, etc., can apprehend immediately, we really know only by means of our understanding. For the lat- ter alone can give us a distinct notion of it, viz., the notion of a thing measurable in length, breadth, and depth. The other qualities of bodies are not really in- herent inthem. ‘‘Look at this piece of wax; it has just been taken from the hive; it has not yet lost the sweetness of the honey it contained; it still re- 24. MODERN PHILOSOPHY IN FRANCE. tains something of the fragrance of the flowers from which it was gathered; its color, figure, and size are apparent; it is hard, cold, easily handled, and if you strike it, will give forth some sound. * * * But now, while I am speaking, somebody brings it near the fire; whatever taste remained in it is exhaled, the odor evaporates, its color changes, its shape is lost, its size increases, it becomes liquid, it is warmer, one can hardly handle it, and when we strike it, it will no longer give forth asound.’’ And yet the same wax is, there.-4eiherefore thismvaz was neither the honey-sweet flavor, nor the pleas- ant flowery smell, nor the whiteness, nor the form, nor the sound, but merely a body which, a short time before, was apparent to my senses under these forms, but now presents itself under other forms. Therefore all I can concezve clearly and distinctly about this body is its extension. Descartes’s definition of the soul is “‘a thing that thinks’’; of the body, ‘‘a thing that has ex- tension.’’ This doctrine is strangely at variance with the metaphysics taught in his time. The scholastic philosophers, who on this point followed the teaching of Aristotle, regarded the soul as both the principle of life and the principle of thought. The same soul which in plants is purely nutritive, becomes locomotive, then sensitive in animals, and lastly, in man, rational. And though such a doc- trine made the immortality of the soul a difficult thing to conceive, it was no cause of embarrassment DESCARTES. 25 to the schoolmen, for immortality to them was an object of faith, not of demonstration. There is neither a nutritive nor a locomotive soul, says Descartes. There is but one kind of soul, which is the thinking soul, for feeling is thinking. Nu- trition and locomotion are explainable simply by the laws of mechanics. Animals, which do not think, do not feel either. They may be looked upon as automatons, and the perfection of some of their actions may be compared to the perfection of the workings of a clock. After this, we can no longer suppose that the destiny of man after death is the same as that of flies and ants. Scholastic physics likewise assumed the existence of forces and occult causes inherent in matter, and thought the specific nature of certain natural phe- nomena could not otherwise be accounted for. Here again Descartes adopts the reverse of their doctrine, rejecting zz toto these assumed principles, forces, and causes, which to him are but confused notions, hypotheses convenient to sluggish minds, explana- tions which explain nothing, but merely repeat the enunciation of the problem under another form. Given matter, that is, extension as considered by geometricians, he wants no other data than number, motion, and duration. These are sufficient, he con- siders, to account for all the phenomena which take place in bodies either inorganic or living. Thus Descartes’s physical science is purely ra- tional in character and in scrupulous accordance with the rule of his method which forbids him to 26 MODERN PHILOSOPHY IN FRANCE. ‘faccept anything as true unless it appears by evi- dence to be so.’’ It tends to assume a geometrical form, and all questions of physics are reduced, at least in principle, to problems of mechanics. ‘‘Give me matter and the laws of motion,’’ says Descartes, ‘and I will build a universe exactly like the one that we behold, with skies, stars, sun, and earth, and on the earth minerals, plants, and animals; in short, everything that experience introduces to us, except the rational soul of man.”’ No doubt Descartes imagined all natural phe- nomena, and in particular those of animated beings, to be less complicated than they really are. His conceptions are those of a great mathematician, living at a time when physics and chemistry hardly existed, and when biology did not exist at all. He thinks he can determine a przorz the num- ber of the fixed stars. He imagines he can describe accurately the formation of the foetus. He hopes, by taking due care of the human machine and by repairing it when necessary, to protract the life of man indefinitely, to conquer disease and even death. Scientific men in our days are better acquainted with the difficulties of such problems, and are con- sequently less pretentious. But the scientific ideal they aim at, though indefinitely removed from that which we are considering, has remained pretty much the same as Descartes conceived it: to discover the laws of every phenomenon by reducing them, as far as possible, to number and measure, and to discard DESCARTES. 2; every metaphysical hypothesis meant to explain any class of physical phenomena. This geometrical conception of the material uni- verse was repeatedly attacked by the successors of Descartes. Leibniz endeavoured to prove that the Cartesian definition of matter was incompatible with the laws of motion. Leibniz is fond of con- necting Democritus and Descartes, and is wont to quote them together. The parallel is an ingenious one, but should not be followed up too closely. No doubt Descartes, like Democritus, requires only matter and motion in order to explain the genesis of the physical universe. But, to say nothing of the very considerable differences between the ex- planation of Democritus and that of Descartes, can any one forget that the physical science of Democritus and his metaphysics are all one and the same thing? Atoms and vacuum are to him the primal elements of all things, and, as was objected to him by Aristotle, he does not take the trouble even to explain the origin of motion. With Des- cartes, before physics is begun a complete meta- physical system has first been established, and it is from this that physics is to derive its principles: the primordial laws of phenomena (for instance, that light propagates itself in straight lines) are deduced from God’s attributes. Moreover, Descartes is not compelled by his system, as Democritus is, to deny the existence of final causes. On the contrary, he maintains their existence. It is true that he for- 28 MODERN PHILOSOPHY IN FRANCE. bids us to seek them out, but the reason is that, according to him, it would be highly presumptuous in us mortals to try to comprehend God's designs; the more so as God’s liberty is absolute and infinite, and since, in consequence, His acts may be wholly unintelligible to our reason. And lastly, far from looking upon matter as self-existent, Descartes be- lieves that bodies, as well as all other finite things, exist only by God’s express will and constant help. Should this help cease for an instant, all bodies would at once sink back into nothingness. The mechanical character of Descartes’s system, if mechanical it be, is therefore far removed from the materialism of Democritus. Descartes firmly maintained the reality of free-will, to which he ascribes an essential part in his theory of judg- ment and of error. It is only as physicist, not as philosopher, that Descartes may be termed mechanical. But in this sense, nearly all men of science are so, too; for, to use F. A. Lange’s strik- ing expression: ‘‘Mechanism is an _ excellent formula for the science of nature.”’ But is not, however, the strictly deductive sci- ence conceived by Descartes very remote from the modern science of nature, which employs the experimental method with so much zeal and suc- cess? True, Descartes often thought deduction easy when it was difficult, and possible when it was impracticable. But this was a question of fact, not of principle. As this or that branch of science (at least, of physical science) is gradually brought DESCARTES. 29 nearer to perfection, we see it grow from the experi- mental into the rational. Such has long been the case with astronomy and celestial mechanics, and later, successively, with optics, with acoustics, with hydrodynamics, with the theory of heat and elec- tricity and other fields of physics, all so many con- firmations of the Cartesian ideal. Moreover, Descartes himself assigned an im- portant rdle to the experimental method. Anec- dotes depict him to us as rising very early, in Amsterdam, in order to choose in a butcher’s shop the joints he wished ‘‘to anatomize at leisure’; or answering an inquirer who wished to see his library, ‘‘Here it is,’’ at the same time pointing to a quar- ter of veal which he was busy dissecting. In the last years of his life he devoted only a few hours a year to mathematics, and not much more to metaphysics. He busied himself almost exclu- ’ sively with experiments in physics and physiology. How could he have failed to appreciate the import- ance of a method which he was himself so assiduously putting into practice? ‘“ Anticipating causes with effects,’ cartes’s felicitous definition of experimenting. It clearly shows the functions he ascribed to it. Were there only one way in which a certain effect might ’ is Des- be deduced from given causes, experimenting would be unnecessary. But natural phenomena are so complex, and the possible combinations of causes are so numerous, that we may nearly always explain in several ways the production of a given effect. 30 MODERN PHILOSOPHY IN FRANCE. Which is the right way? Experiment alone can decide. Let us make a distinction between science already developed and science which is developing. To expound a developed science the suitable method is deduction,—descent from causes to effects. But science which is developing cannot yet adopt this method; and to discover unknown laws, it must em- ploy the experimental method, must anticipate causes with effects. Descartes had written a Trazté du Monde and was about to publish it, when the condemnation of Galileo for heresies concerning the motion of the earth altered his resolution. Being above all desir- ous to work in peace, and to postpone as long as he could a perhaps inevitable conflict with the theologians, he published only a few fragments of his physical theories, and put a summary sketch of it into the admirable fifth part of the Dzscours de la Méthode. We must certainly deplore the loss of this great work, which would throw light upon many an obscure point in the Cartesian philosophy. But after all, the essential part of the doctrine did not lie here, any more than in the well-known hypothesis of ‘‘vortices,’’ which the Cartesian philosophers of the eighteenth cen- tury vainly tried to set up in opposition to the principle of universal gravitation discovered by Newton, and with which some physicists now partly agree in their theories of matter. The main interest lies elsewhere, viz., in the per- DESCARTES. 31 fect character of the science of nature, of which Descartes had such a clear and precise notion, even though he was far from being able to put it into prac- tice save in a few points (for instance, by his discov- eries in optics). It is said that the man who in- vented the plough still walks, invisible, beside the peasant who drives his own plough in our days. I might almost say that, in our laboratories, Descartes stands invisible and present, investigating with our scientific men the laws of phenomena. If he had lived, would he have passed on from the sciences of life to the ethical and social sciences, as he had done already from mathematics to phy- sics, and from physics to anatomy and physiology? This may be doubted. To say nothing of considera- tions of prudence, to which Descartes was most sus- ceptible, he held in slight esteem the visionaries and political’ reformers: ofmthes sixteenth century, and would have been sorely vexed if any comparison had been drawn between their fancies and his own doc- trines. On the other hand, he could not but find it extremely difficult to make social facts fall in with his method, since, as Auguste Comte very aptly ob- served, so long as biology is not sufficiently ad- vanced, social science must needs be out of the ques- tion. Now, in the time of Descartes, biology was still unborn. Even ethics he does not seem to have taken into deep consideration. He borrows the rules of his provisional ethics from Montaigne and from the Stoics. Stoicism, modified in some re- spects, also forms the fundamental part of Des- 32 MODERN PHILOSOPHY IN FRANCE. cartes’s moral letters to Princess Elizabeth. Itisa peculiarity of French philosophy, that it has pro- duced many moralists and few moral theorists. The reason for this we shall seek elsewhere. Cer- tain it is that Descartes was not one of these theor- ists. Perhaps he believed that scientific ethics (ethics not grounded on religious authority) could not be established till the science of man was estab- lished, and the connection of the physical and the moral better known. To this knowledge he opened the way in his Zrazté des Passions de 1’ Ame. All the precautions taken by Descartes, all his prudence, did not shield him from the attacks his philosophy was to bring upon him, as being ‘‘sub- tle, enticing, and bold.’’ After hesitating a long while, the Jesuits, by whom he had been brought up at La Fléche, and among whom he had still some friends, declared themselves against his phi- losophy. The seventh series of Odjections, by Father Bourdin, express the opinion of this society. Descartes wrote a vigorous reply. His quarrel with the Jesuits was one of his motives for not living in France. He established himself in Holland, where he lived a long while in undisturbed peace. But as his philosophy spread, attention was drawn to him, and as the universities of the country were beginning to quarrel about his theories, he felt that his life there would soon become unbearable. He therefore resolved to yield to the entreaties of Queen Christina, who earnestly urged him to come to Sweden. But he could not endure the severe clim- DESCARTES. BB ate of that country, and hardly six months had elapsed when he died of inflammation of the lungs. Later, his body was brought back to France. The philosophy of Descartes was in accord with the leading tendencies of his time. The success which attended it from the moment it appeared is a proof of its opportuneness, and it is difficult to determine whether it formed rather than expressed the spirit of the age. Doubtless it did both. As has been said, the seventeenth century in France was preéminently the “‘age of reason.’’ Aimez donc la raison; que toujours vos écrits Empruntent d’elle seule et leur lustre et leur prix, said Boileau; yet perhaps, had it not been for the Cartesian philosophy, this taste for reason might not have asserted itself so earnestly and have been so perfectly conscious of its existence. This philosophy of ‘“‘clear ideas’’ prevailed in France in the second half of the seventeenth century, and from France its influence spread over all Europe. Though vigorously attacked in the eighteenth cen- tury, both as to its metaphysics and its physics, it nevertheless remained discernible even in the methods of its adversaries. Locke, Hume, and Condillac had not the same conception of evidence as Descartes; but their empiricism was as fond of clearness as his rationalism had been. Newton combated the hypothesis of ‘‘vortices,’’ but he preserved the Cartesian notion of a mechanical ex- planation of physical phenomena. For a thorough- 34 MODERN PHILOSOPHY IN FRANCE. going and express negation of the Cartesian spirit we must go to the end of the eighteenth cen- tury. Then the German romantic writers spring up, and maintain that the philosophy of clear ideas is false from its very principle. Accord- ing to them, reality is not clear, and the more satisfactory a doctrine is to the human understand- ing, the surer it is to reproduce only the surface of things, while the essence of them is mysterious, in- tangible and inexpressible. . Whence it follows that religions, arts, and literatures are spontaneous phil- osophies, incomparably deeper than the systems produced by the conscious labor of the understand- ing, even as the works of nature are artistically superior to the articles manufactured by man. The philosophy of Descartes, to tell the truth, affords but little scope to sentiment, and still less to the imagination and to the hidden and uncon- scious activities of the mind. It places value on evidence alone, whose vivid, but glaring light, dis- pels the chiaroscuro so dear to romantic writers. This fixed and rigid purpose has its drawbacks, which were not long in making their appearance among the followers of Descartes. But apart from the fact that in Descartes himself the rational effort was uncommonly sincere and vig- orous, at the time when this philosophy appeared it was really necessary. It was a deliverer. It put an end to superannuated doctrines, the domi- nation of which was still heavily felt. It cleared the ground, and set physics free, once for all, from DESCARTES. 35 the clogs of metaphysical hypotheses. Lastly it formulated problems which needed formulation. Descartes wished to furnish science not only with a powerful and flexible instrument such as Bacon had already sought, but also with an unchanging and immovable basis. Thence sprang the “ provisional doubt,”’ with which his method bids him begin, which obliges him to test all previously acquired information, and which may be looked upon as the starting-point of all modern theories of knowledge. For this doubt, which affects successively percep- tion, imagination, reasoning power, and stops only before the immediate self-intuition of thought, is itself a criticism of the faculty of knowledge. It studies it in its connection both with the outward object and with the very mind which is thinking; in short, it heralds Kant’s Crztzque of Pure Reason. An innovating and fruitful doctrine nearly al- ways develops in various directions. The various minds that receive it gradually draw from it diverse and sometimes contradictory conclusions, most of which were overlooked and would often have been disapproved of by the founder of the system. This is perhaps even truer of Descartes than of any other philosopher. Being chiefly preoccupied with the method and structure of science, he did not hesitate to leave open, at least temporarily, many important questions which his method did not require him to solve immediately. Thus it hap- pened that metaphysical systems very different from one another were soon founded on the Car- 36 MODERN PHILOSOPHY IN FRANCE. tesian principles. Spinoza adopted the definition which Descartes had given of soul and matter, but in thought and extension he saw only two attributes of one and the same substance. Beside this pantheism, appeared the idealism of Male- branche, which proceeds no less directly from Des- cartes; for did not the latter say that ‘‘truth is the same thing as being?’’ And? doesnot ‘the theory of continued creation lead directly to that of occasional causes? Locke, who combated Des- cartes on the subject of innate ideas, without un- derstanding him exactly, has on the other hand many points in common with him; the very idea of inven- torying and examining the ideas in our minds is singularly akin to the critical examination of our knowledge which, in Descartes, precedes the cogzto. And lastly, into the idealism of Leibniz the Cartesian element enters in large measure; for instance, the notion of sensation being but a dim intellection, which is the central point of Leibniz’s theory of knowledge, had already been clearly stated by Des- cartes. The philosophy of Descartes is therefore a sort of cross-road whence diverge the chief ways followed by modern thought. Still, outside of France, his method has not been followed without restrictions, and his philosophy has been accepted only to be immediately combined with other elements, either traditional or modern. In France, the influence has been far deeper and more enduring. There, while the Cartesian philosophy may have lost its DESCARTES. 37 prestige rather quickly, the Cartesian spirit, owing doutless to its close affinity with the very genius of the nation, has never disappeared, and we shall recognize its influence, not only throughout the whole eighteenth century and in the French Revo- lution, but in all the greatest thinkers of the nine- teenth century. CHAP UR Kis CARTESIANISM IN FRANCE, MALEBRANCHE. UPON the appearance of the Descours de la Méthode the majority of the French public declared them- selves forthwith in favor of Descartes. Descartes had published the work in French, ‘‘the language of hishicountryaains preference,to, latin, wethat ores teachers,’’ and had thus appealed beforehand to all those ‘‘who make use of their reason.’’ The event proved him to have reckoned rightly. Never was a new doctrine more favorably received. How sur- prising and delightful to see a bold and living philosophy, the chief concern of which was to ‘“suide reason well and to seek the truth in sci- ’ ence,’’ suddenly springing up to confront an anti- quated and decaying tradition which had no life nor use outside the walls of the schools! No less pleasing was it for the clearness and simplicity of its principles, which formed such a happy contrast to the obscurity, distinctions, and endless subtleties of scholasticism. Many women were ardent Car- tesians. The Femmes Savantes in Moliére speak, as a matter of course, of thinking substance and subtile matter, and Madame de Sévigné was on the point of becoming a Cartesian in order to show her sympathy with Madame de Grignan, her daughter, 38 CARTESIANISM IN FRANCE. 39 who was very partial to Descartes, and called him ener tather,;© In spite of the rapid and brilliant success of this philosophy, and of the enthusiastic admiration bestowed upon its author— Descartes, ce mortel dont on efit fait un dieu Cheziles' paiens]. Sein still it encountered a fierce and tenacious opposition, which, no doubt from the first, foresaw its own de- feat, but did not confess itself vanquished till the end of the seventeenth century. This opposition sprang chiefly from the universities in which the traditional scholastic doctrine was taught. In some of these, into which the philosophy of Descartes speedily made its way, it was immediately com- bated and condemned. In Paris only Boileau’s Arrét burlesque saved the Parliament from the ridiculous step of an actual fiat forbidding the teaching of any other philosophy than that of Aris- totle. In Rome the Jesuits succeeded in having the works of Descartes inserted in the /udex Expur- gatorius. They had hesitated a long while, and the rupture might have been avoided had the matter not been complicated with ecclesiastical conten- tions. It was sufficient that the Oratorians and the Jansenists had openly declared themselves in favor of Descartes, to cause the Jesuits to oppose him. It was for them an opportunity of humiliating the congregation of the Oratory and one more means of persecuting the Jansenists. Thus the philosophy t'‘ Descartes, this mortal who would have been a god among the pagans.”’ 40 MODERN PHILOSOPHY IN FRANCE. of Descartes served as a pretext for most unphilo- sophical quarrels. In opposition to Descartes the Jesuits placed Gassendi, the keenest and deepest of his critics. Not that Gassendi’s philosophy had no points in common with that of Descartes. Like the latter, and before him, Gassendi had proclaimed the rights of free philosophy, and attacked scholasticism with unusual violence; like him also he was a mathema- tician and a physicist as well as a philosopher, and in full accord with the men of science of the six- teenth century and the beginning of the seven- teenth. To this his scientific biographies and his correspondence with Galileo bear testimony. But, unlike Descartes, he did not undertake to substitute for scholasticism a system of his own. Being well versed in the history of ancient systems, he applied himself chiefly to reviving that of Epicurus. He endeavored to restore the real physiognomy of the latter philosopher, disfigured as it had been by legendary tradition, and his real doctrine, no less distorted than his character. He took up again, on his own account, the chief features of the Epicurean logic and physics. Yet while he was a sensation- alist, and gave, like Epicurus, a materialistic expla- nation of acquired knowledge, Gassendi nevertheless maintained that there is an immortal soul within us, and that there is a God whose Providence created and rules the world. This eclecticism, the sincerity of which does not seem doubtful, served to prevent Gassendi from being a very formidable adversary of CARTESIANISM IN FRANCE. 41 Cartesianism. As a reviver of atomism, and the defender of a physical conception which was soon after to be adopted by such men as Boyle and New- ton, Gassendi left a lasting impress on the history of philosophy. But the empiricism which he opposed to the rationalism of Descartes was not consistent enough to stop the progress of the latter for any length of time. Descartes had always lived as a good Roman Catholic; and before laying down his doctrine he had carefully “‘set apart’’ all truths pertaining to religious faith. This certainly was an evidence of his respect and submissiveness; and yet such a precaution did not satisfy every one. Religious truths are not so easily “set apart.’’ For instance, how does Descartes make his theory, according to which matter is nothing else than extension, agree with the mystery of transubstantiation? It seems, indeed, that it should always be possible to accord with a mystery, so long at least as one does not formally deny it. In fact Descartes tried to show that his doctrine asserted nothing incompat- ible with the mystery; but his explanations were not thought orthodox, and they marred rather than mended matters. Bossuet preferred to disregard them, so as not to be bound to censure Descartes, and thought himself justified in so doing, as Des- cartes had not published these explanations over his own name. Be the truth what it may on this point, the Car- tesian rationalism, which boldly freed itself from all 42 MODERN PHILOSOPHY IN FRANCE. authority, even from religious authority, was cal- culated to alarm pious consciences, and actually elicited from them hostile judgments. Some looked upon Descartes as a useful ally of religion. They rejoiced to see him combat the libertine with his own weapons, and demonstrate, with the help of reason alone, the existence of God and the differ- ence between body and soul. Others were not so much impressed with the service rendered to reli- gion as they were made uneasy by seeing reason and faith thus deliberately separated, fearing lest the side of faith should finally find itself in the minority. Besides, were libertines so sure to be silenced by Descartes’s demonstrations, and might not his principles very possibly be turned to good account by unbelievers? Pascal, while admiring the genius of Descartes, really seems to have pointed out the danger in which the Christian dogma would be involved by the results of such a philosophy. It was necessary therefore to allay this solicitude. It was not sufficient that the philosophy of Des- cartes did not deny the truths of religion; it must needs show that the consequences of its principles were in strict accordance with what Christian faith demanded that its followers should believe. Scho- lasticism had endeavored to effect such a reconcilia- tion, and had found its strength in having, at least for a time, achieved it. The same problem con- fronted the Cartesian philosophy, and attempts at solution were not long wanting. The craving for unity is an imperious one; many minds are not CARTESIANISM IN FRANCE. 43 contented with two classes of truths in juxtaposi- tion, even if no contradiction be perceptible be- tween them; the two classes must, to satisfy them, be reduced to one. The task here was made particularly difficult by the characteristics of both the theology and the philosophy which had to be reconciled. Protes- tant theology has in the end always acquiesced, more or less readily, in such philosophical doctrines as were not positively irreligious; this it is justified in doing, since it acknowledges itself to be a prod- uct of evolution, and holds that change is no sign of error. But the Roman Catholic theology, on the contrary, makes immutability the necessary condition of truth. Not only the dogma, but the very interpretation of the dogma is fixed, and not even the slightest modification of what has been established by infallible and divine authority must be exacted to secure agreement with a philosoph- ical doctrine. The Cartesian system, on the other hand, is positive and clear cut, and hardly lends itself to compromises, which its methods forbid by strictly excluding from the realm of science what- ever cannot maintain itself before the court of reason. Moreover, to effect the desired reconcilia- tion, and make Cartesianism a doctrine not only respectful to but expressive of faith, required a mind at once extraordinarily metaphysical and ex- traordinarily pious; an imagination wonderfully quick and penetrating and able to recognize in the Cartesian precepts and tenets the religious convic- 44 MODERN PHILOSOPHY IN FRANCE. tions with which it was itself imbued. Such a soul was Malebranche. Malebranche was a philosopher, to use Plato’s beautiful expression, with his whole soul. Far from raising a kind of impenetrable partition be- tween his religious faith and his rational thought, he did not even conceive the possibility of a con- flict between faith and philosophy, if the latter were genuine. ‘‘I am persuaded, Ariste, that one has need to be a sound philosopher in order to find one’s way into the understanding of the truths of faith, and that the better fortified one is in the true principles of metaphysics, the more steadfastly will he cling to the truths of religion.’’ These few words sum up the program which Malebranche en- deavored to carry out, or more exactly, the postu- latum, the truth of which his whole philosophy seeks to establish. To this end it was necessary for him to introduce between Catholic dogma and Cartesian rationalism new elements which would cnable him to pass by imperceptible degrees from the one to the other. These elements offered themselves to him almost spontaneously in Augustine, whose doctrine was particularly studied by the congregation of the Oratory, to which Malebranche belonged. With the help of Augustine, he dipped deep into ancient philosophy, whence he borrowed chiefly Platonic notions, toward which the natural bent of his mind inclined him. Thus the connection between ancient MALEBRANCHE. 4S and modern philosophy, which Descartes thought he had definitively interrupted, was renewed in the very first generation that followed him, at the hands of his most illustrious successor. But Malebranche did not make himself a slave to Plato as Scholasti- cism had been subject to Aristotle. On the contrary, the mixture, or rather blending, of these Platonic elements with the Cartesian principles gave to Male- branche’s doctrine an original flavor. The great work on which Malebranche labored for ten years, and which appeared in 1674, was entitled La Recherche de la Vérité, or The Search for Truth. Yo begin with, whoever undertakes such a search is to make a careful distinction between rational evidence, the only sign of truth, and the false light of the senses, which, in spite of its ap- parent clearness, gives but deceitful information. Our senses produce vivid impressions upon us, but downotienlichten use siheieht. of reason,,.on, the contrary, which seems cold, shows us things as they really are. Therefore, we must close our bodily eyes, and accustom ourselves to see only with our spiritual eyes. This precept is often expressed in language which reminds us of Plato. Socrates, in the Piedo, repre- sents the body as an element of confusion and darkness, obfuscating the natural clear-sightedness of the soul, which it subjects to gross and deceitful appearances; it restricts the soul to an imperfect reminiscence of the eternal realities, and is, in fact, a sort of prison from which the wise man’s soul yearns 46 MODERN PHILOSOPHY IN FRANCE. to be released. Similarly, Malebranche speaks of the tumult of the senses which prevents the soul from hearkening to the voice of reason. He then passes on by imperceptible degrees from the Platonic to the Christian point of view. The soul’s sub- servience to the body becomes a consequence of the original fall; the dominance of the senses over the spirit is said to be the result of sin, and the soul’s possession of truth to be communion with God. ‘‘The spirit stands, so to speak, between God and the body, between good and evil, between what illumines and what blinds it, what rules it well and what rules it ill, what may make it perfect and happy, and what is apt to make it imperfect and unhappy.’ Thus, according to Malebranche, as well as according to Plato, philosophy first requires the soul to assunie a different attitude from that which it occupied before reflecting. Things which are visible and tangible, which may be tasted and smelt, it first believed to be real: it shall henceforth look upon them as illusory. Things, on the contrary, which are neither seen nor touched, but are cog- nizable by the intellect alone, it shall look upon as the only ones which are real. Malebranche has no difficulty in establishing the truth of this precept, supporting it by Descartes’s principles. He shows that the secondary qualities of bodies are all relative to the thinking subject. That property alone belongs to bodies which we conceive by means of our under- standing—i. e., extension. Our senses therefore teach us nothing. We think we see the room in MALEBRANCHE. 47 which we are. We think we see the sun. Itisa delusion, and itis certain that we do not. It is not even possible to conceive how we could see them; for in what way could such material objects act upon the immaterial soul, there being nothing in common between it and them? Must we then reject entirely the data given by our senses as false and deceitful? No, says Malebranche; our senses are neither deceitful nor corrupt, if we make use of them only as regards their proper func- tion; that is, the preservation of the body. They fulfill their duty admirably well, speedily warn the soul by means of pain and pleasure, by means of pleasant and unpleasant sensations of what it must do or refrain from doing for the preservation of life. he ot hey represent instanctinus,iand haveuts blind infallibility. If we had to depend on reflection for avoiding the various dangers which threaten our body at every moment, we should very soon per- ish. The senses are marvelously well suited for this office, and in most cases it is sufficient for us to trust to their spontaneous activity. But let us ex- pect nothing more from them! Valuable as they are for our preservation, they are incapable of teach- ing us. Many of our errors arise from our neglect- ing to make this distinction. As our senses do not deceive us concerning what is beneficial or harmful, we fall into the habit of trusting to them in all things, even where they can only lead us astray. This tendency is almost unavoidable. In order to make us heedful of the impressions made by the 48 MODERN PHILOSOPHY IN FRANCE. senses, God caused them to be attended with pleasure and pain. A pin’s prick, though convey-. ing no distinct information (for we do not even know what takes place here in the nerves and brain), produces upon us a most vivid impression, and compels us to give our attention to it. We thus form the habit of judging of the reality of things by their practical interest for us; that is, we trust to the senses in order to know what things are, and in this we are mistaken. If, therefore, we really know ‘‘outward objects,’’ it is not by means of sensations, since these are dim and give us no reliable information. It is by means of zdeas—i.e., of representations clear to the understanding and which have nothing in common with sensations. Ideas are in God, and the mind perceives them in God. When it discov- ers any truth, or sees things as they are in them- selves, it sees them in God’s ideas—that is, with a clear and distinct vision of what is in God, who represents “them: «Chus, severyptinve) ithe ipime knows the truth it is united with God; in some measure it knows and possesses God. For the demonstration of this celebrated theory of ‘‘vision in God,’’ Malebranche depends upon the Cartesian principles. He defines the soul as that which thinks, and the body as that which has ex- tension. An instinctive feeling persuades us that these two are united, and we feel confident of it. But we have no evidence of it, and we even see quite plainly that the mind and the body are two MALEBRANCHE. AQ things of quite opposite kinds. We do not, then, understand how something corporeal—that is, some- thing which has extension—can produce upon the soul an impression which can be called knowledge, or how the soul can go out of itself to wander through the heavens*. The object of knowledge, therefore, can be nothing else than an idea. When I perceive the sun, for instance, whether it be above the horizon or not, whether I be musing or dream- ing, matters little. ‘Ineonetease!; indeed; my per- ception is true, and in the other false, and we are not without a means of distinguishing between them; but it is never the material object that I per- ceive, it is always the idea of the object that is present in my soul. Beset by the objections raised against him, Male- branche gave several successive forms to his theory of the vision of ideas in God. We cannot here make a distinction between them; let it be suffi- cient to indicate the method by which he arrives at Enismineor.)) Te: examinecewonevalter-another, all the hypotheses which may explain our knowledge of ideas. He first eliminates the theory of “‘sensi- ble images,’’ which had been derived from an- tiquity by scholastic philosophers. This hypothesis increases, instead of solving, difficulties, and one cannot understand how sensible images, being something material, can be transformed into some- thing spiritual, like ideas. Does, then, the human soul produce ideas spontaneously? It is mere * Aller se promener dans les cieux.”’ 5O MODERN PHILOSOPHY IN FRANCE. human pride to imagine that the soul can produce anything. Such a supposition would imply that it is endowed with causality. Now, as will soon be shown, no creature is a cause. God alone acts in the Universe. Shall we say that ideas were created by God, together with the soul? A very improb- able hypothesis, and not easily made to agree with God’s wisdom. It would suppose “‘infinities of ’ infinite numbers of ideas’’ to exist in each created soul. Is it not far more reasonable to suppose that ideas are eternally subsisting in God? We know them when God thinks best to reveal them to us. 6é This hypothesis is not only the most ‘‘practical,’’ but also the one which best shows us our depend- ence upon God. As space encompasses bodies, so does God encompass minds. To know is to partake of the divine intelligence. The ideas which repre- sent God’s creatures to our minds are but God’s perfections corresponding to these very creatures and representative of them. We perceive ideas only by means of pure under- standing; for the world of ideas is a purely intel- lectual world to which the senses have no access. The worst sort of confusion would follow from mis- taking sensations, which Malebranche terms the modalities of our soul, for ideas, which are in the divine intelligence. But there is no room for mis- take in the matter, so completely do the character- istics of modalities differ from those of ideas. The modalities of the soul are changeable, ideas are im- mutable; modalities are particular, ideas are uni- MALEBRANCHE. SI versal and general; modalities are contingent, ideas are eternal and necessary; modalities are dim and obscure, while ideas are very clear and luminous; modalities are but dimly though keenly felt, while ideas are clearly known, being the foundation of all sciences. And not only do we see in God the ideas of ‘‘outward’’ objects, but we also see in Him the axioms of reason, and such truths as Bossuet, fol- lowing Augustine, termed eternal. The hypothesis of the ‘‘vision in God,’’ the most probable, and indeed the only probable one, accord- ing to Malebranche, seems to our common sense extremely paradoxical. It called forth the taunts of his contemporaries, and the well-known line: “Lui qui voit tout en Dieu n’y voit pas qu'il est fou*.’’ Yet it is a legitimate corollary of the principles established by Descartes; and the theories of Spin- oza and Leibniz on this point, though different in expression, are not very remote from that of Malebranche. Descartes had proved that we do not know objects through our senses, but by our understanding; and that, to the intuition of the mind, matter is merely what has extension. Now the science of extension is geometry. It is com- posed of truths which appear to the mind as uni- versal and necessary. Kant denominates them ““a priort,;’’ Malebranche calls them immutable and etetnal. Where lisethem primary, cause .of i these truths, and consequently of the whole physical *** Fle who sees all things in God sees not his own lunacy there.” 52 MODERN PHILOSOPHY IN FRANCE. world? Evidently not in my individual under- standing, which is finite and perishable. It can only be in an understanding which is as infinite, eternal and necessary as those truths themselves. Descartes had already said that all our science is true only because God exists. Malebranche went a step farther, and asserted that there is no science save through our participation in the divine thought. We see the truth only when we see things as they really are, which we never do unless we see them in Him who contains them intelligibly. Malebranche, as a good Cartesian, has a purely geometrical and mechanical conception of nature. ‘“With extension alone,’’ he says, ““God produced all the admirable things we see in nature, and even what gives life and movement to animals.’’ Yet, though Malebranche agreed with Descartes in saying that animals are machines and do not feel, he was evidently interested in the extraordinary discov- eries just made by Swammerdam, Leewenhoek and several other scientific men with the help of the recently-invented microscope. The theory of ‘‘en- cased germs,’’ though with Leibniz he accepted it as the most plausible theory of the time, leaves him only half satished. He easily understands how, by the mere power of mechanical laws, the tiny tree hidden in the seed will grow progressively, and gradually become the tall oak which we behold. No doubt the actual division of matter goes far be- yond the reach of our senses, and it is probably the same with the organization of matter. A drop of MALEBRANCHE, 53 liquid, Leibniz says, is a pond full of fishes, and every drop of blood in one of those fishes is another pond*® full of) fishes, andm