id author title date pages extension mime words sentences flesch summary cache txt en-wikipedia-org-5771 Philosophy of space and time - Wikipedia .html text/html 7534 946 57 The Vedas, the earliest texts on Indian philosophy and Hindu philosophy, dating back to the late 2nd millennium BC, describe ancient Hindu cosmology, in which the universe goes through repeated cycles of creation, destruction, and rebirth, with each cycle lasting 4,320,000 years.[2] Ancient Greek philosophers, including Parmenides and Heraclitus, wrote essays on the nature of time.[3] In 1781, Immanuel Kant published the Critique of Pure Reason, one of the most influential works in the history of the philosophy of space and time. The great debate between defining notions of space and time as real objects themselves (absolute), or mere orderings upon actual objects (relational), began between physicists Isaac Newton (via his spokesman, Samuel Clarke) and Gottfried Leibniz in the papers of the Leibniz–Clarke correspondence. The second major family of solutions to this problem, and by far the one that has generated the most literature, finds the existence of the direction of time as relating to the nature of thermodynamics. ./cache/en-wikipedia-org-5771.html ./txt/en-wikipedia-org-5771.txt