I: The Tradition -- One: Aristotelian and Platonic Conceptions of Explanation -- Two: Aristotle's Philosophy of Nature and Theory of Potentiality -- Three: Plato's Concept of the Actual and His Philosophy of Nature -- II: The Logical Revolution -- Four: The Copernican Harmony -- Five: Bacon's Informative Logic -- Six: Informativity and Paradox: Galileo's Conception of the Nature of Physical Reality -- Seven: Descartes' Informative Logic -- III: Newton's Physics and its Critics -- Eight: Actual Infinity and Newton's Calculus -- Nine: Newton's Logic of Space and Time -- Ten: Modern Newtonian Historiography and the Puzzle of Newton's Absolute Space -- Eleven: Absolute Motion and the Nature of Inertial Forces -- Twelve: Locke and the Meaning of โ{128}{156}Empiricismโ{128}{157} -- Thirteen: Newton's Invention of the Problem of Induction -- Fourteen: Circularity and Newton's Philosophy of Nature -- Fifteen: Leibniz's Aristotelian Philosophy of Nature -- Sixteen: Berkeley's Aristotelian Critique of Newton's Physics -- Epilogue -- Appendix: Some Basic Ideas in Newton's Physics -- Notes