id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
en-wikipedia-org-508		Fact - Wikipedia			.html	text/html	3158	441	59	Roger Bacon wrote "If in other sciences we should arrive at certainty without doubt and truth without error, it behooves us to place the foundations of knowledge in mathematics."[10] Further information: Scientific method and Philosophy of science A scientific fact is a repeatable careful observation or measurement (by experimentation or other means), also called empirical evidence. Philosophers and scientists are careful to distinguish between: 1) states of affairs in the external world and 2) assertions of fact that may be considered relevant in scientific analysis. Scholars and clinical researchers in both the social and natural sciences have written about numerous questions and theories that arise in the attempt to clarify the fundamental nature of scientific fact.[21] Pertinent issues raised by this inquiry include: ^ "Facts possess internal structure, being complexes of objects and properties or relations" Oxford Companion to Philosophy	./cache/en-wikipedia-org-508.html	./txt/en-wikipedia-org-508.txt