id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
en-wikipedia-org-7872		Prolegomena to Any Future Metaphysics - Wikipedia			.html	text/html	7967	705	59	Prolegomena to Any Future Metaphysics That Will Be Able to Present Itself as a Science (German: Prolegomena zu einer jeden künftigen Metaphysik, die als Wissenschaft wird auftreten können) is a book by the German philosopher Immanuel Kant, published in 1783, two years after the first edition of his Critique of Pure Reason. In it, an abstract examination of the concepts of the sources of pure reason results in knowledge of the actual science of metaphysics. The Critique of Pure Reason, however, asserts that it is uncertain whether or not external objects are given, and we can only know their existence as a mere appearance. The concepts of substance/accident, cause/effect, and action/reaction (community) constitute a priori principles that turn subjective appearances into objective experiences. The principles that contain the reference of the pure concepts of the understanding to the sensed world can only be used to think or speak of experienced objects, not things in themselves.	./cache/en-wikipedia-org-7872.html	./txt/en-wikipedia-org-7872.txt