Aristotle, Physics Book II (Ch 1-3); Book III (Ch 1-3; 6-9)

Aristotle, Physics. Book III. 1 NATURE has been defined as a ‘principle of motion and change’, and it is the subject of our inquiry. We must therefore see that we understand the meaning of ‘motion’; for if it were unknown, the meaning of ‘nature’ too would be unknown. ................
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