This book enters into the point of view of the ancient world in order to explain how they saw the world, and to show what arguments were used by Aristotle to support this view. Lang demonstrates a new method for reading the texts of Aristotle by revealing a continuous line of argument running from the Physics to De Caelo, and analyzes a group of arguments that are almost always treated in isolation from one another to reveal their elegance and coherence. She establishes the case that we must rethink our approach to Aristotle's physical science and Aristotelian texts.