Abstract

The author claims that parts of the De Caelo comprise a distinct work of Aristotle and can be taken as an early composition, earlier than the De Philosophia. The book is a careful philological and philosophical analysis of this text, and takes a position in regard to the authors who have commented on it. The doctrine of the text is contrasted to Plato’s cosmology, especially concerning the concepts of physics and aether. The text is also compared to Aristotle’s later teaching and many differences are noted: hylomorphism, entelechy, and the unmoved mover, are conspicuously absent. Besides analyzing the relevant parts of De Caelo, the author has remarks about such works as the Protreptic, De Philosophia, and Physics I and II.—R.S.