I: The Tradition.- One: Aristotelian and Platonic Conceptions of Explanation.- 1. Introduction.- 2. Aristotles Notorious Blunder.- 3. The Accepted Explanation and its Distortion of Aristotles Physics.- 4. The Accepted Explanation and the Dissolution of the Scientific Revolution.- 5. The Essence of the Scientific Revolution.- 6. Informative and Non-Informative Concepts of Explanation.- 7. The Irrationality of Informative Explanation.- 8. The Rationality of Non-Informative Explanation: Aristotles Example.- 9. Some Paradoxes of the New Empiricism: Forces, God, Souls and Space and Time.- 10. The Place of God in Informative Science.- 11. The Place of Spirit in Informative Science.- 12. Absoluteness of Space and Time in Informative Science.- Two: Aristotles Philosophy of Nature and Theory of Potentiality.- 1. The Two Potentialities.- 2. The Nature of Consistency Potentiality.- 3. The Nature of Genuine Potentiality.- 4. The Nullity of Potentiality.- 5. Potentiality, Lack and the Coincidental.- 6. The Priority of the Actual.- 7. The Rationality of Genuine Potentiality.- 8. Potentiality and the Theory of Motion.- 9. Form is not Another and Cannot Be Moved by Another.- 10. What, Then, Moves the Five Elements?.- 11. Can Potentiality Be the Mover?.- 12. The Ontology of the Two Potentialities in Action.- 13. First Movers and the Physics.- 14. The Ontology of the Syllogism.- 15. The Physics of the Syllogism.- 16. The Potentiality of the Infinite and the Non-Informativity of Mathematics.- Three: Platos Concept of the Actual and His Philosophy of Nature.- 1. Socrates Search for Scientific Explanation.- 1.1. Socrates Puzzles and his View of Explanation.- 1.2. Socrates Attack on Anaxagoras.- 1.3. The Informativity of the Forms.- 1.4. Teleology and Aristotles Critique of Platos Forms.- 2. Causality, Invisibility and Platos Informative Explanation.- 2.1. Explanation and the Invisibility of Real Causes.- 2.2. Mixture, Necessity and the New Explanation.- 2.3. Soul, Motion lcA