For a generation at least, the main interest in Aristotelian studies has been focused on the Philosopher's relations with Platonism and the tracing of the development of his thought from a position of pure Platonism to his final position, the nature of which has been the subject of keen controversy. Aristotelian scholars, conversant with this theme and its proper methods, will find this thesis somewhat out of line in theme and more especially in method with the common practice. (From preface)