Ch. 1. Motion: Its Ontological Status -- Introduction: The Aristotelian Background. 1. Simplicius' Position. 2. Averroes' Position. 3. The Rejection of Averroes' Position. 4. The Exegesis of the Definition of Motion. 5. The Classification of Motion in the Aristotelian Categories -- Ch. 2. The Infinite. Metaphysical Grounds for the Rejection of an Actual Infinite in Magnitude. The Actual Infinite and the Potential Infinite by Addition in Magnitude. The Infinite in Number -- Ch. 3. Place. Place in the Categories and Place in the Physics. The Synthetizing Approach in the Early English Tradition. The 'Immersive' Notion of Place. The Immobility of Place. The Place of the Heavens -- Ch. 4. Time. Time as Successive Entity. The Extramental Reality of Time and Its Ontological Status. The Unity of Time