The Physics (Loeb classical library)

For many centuries, Aristotle's Physics was the essential starting point for anyone who wished to study the natural sciences. Now, in the first translation into English since 1930, Aristotle's thought is presented accurately, with a lucid introduction and extensive notes to explain the general structure of each section of the book, and shed light on particular problems. It simplifies and expands the style of the original, making for easier reading and better comprehension.