  The Prolegomena to Aristotle’s logic, or in a sense to his whole philosophical work, begins again with a carefully worded statement that is reminiscent of the first words of the Alcibiades commentary: “Since we want to enjoy the fountain of good things, there is an eagerness in us to cling to Aristotle’s philosophy, which provides life with the principle of good things, and not the least because it leads the bright mind towards precision as to what is being sought.” (Proleg. 1,3–6). The Prolegomena consists of five lectures in which he gives his students a brief overview of the various schools of Greek philosophy and the division of the works of Aristotle; he explains, among other things, the aim of Aristotle’s philosophy (recognition of the Good — apparently the prime mover of the Metaphysics — as the principle of everything, 9,14–30) and the moral an intellectual requirements of a student and of a teacher of philosophy (10,3–33). The various philosophical thinkers and schools are being introduced without evaluations of their philosophical merits, and there is no talk about the harmony of the philosophers in general, or between Plato and Aristotle. 