Abstract

In the first book of Physics, Aristotle is concerned with the question “What is Being?” Ti to on? The determinations of Being are obtained from our experience of things in movement: on kinoumenon. His discussion on Being and One, on matter and form, on subject and privation, etc. does not differ from metaphysics. Contents of the translated chapters: 1. Method, 2-3. Theories of the Presocratic physicists on the principles of nature; the essent exists not as one the way Parmenides and Melissus supposed; the multiplicity of Being, 7. Analysis of becoming: the pair of contraries presupposes something third – a substratum, 9. Not-Being as the condition of becoming: Aristotle’s notion of matter.