Those who, in his age, devote themselves to philosophy are bad philosophers for many different reasons: their lack of interest, the obscurity of philosophy and their lack of training and good teachers. But the main reason for the decline of the philosophical production of his age lies in the neglect into which the works of the Ancients have fallen. The pages of these works are by now being used by bookbinders and pharmacists as paper for packaging. No one—says ‘Abd al-Latif—wants to deny the contributions made by Avicenna to philosophical research. He has, in fact, provided new energy to philosophy, and he has been able in part to understand the books of the Ancients and to offer an introduction to them. Nevertheless, if one examines his works in more detail and compares them with those on similar themes by ancient authors and, in particular, with Aristotle or al-Farabi, their inferiority emerges. For this reason ‘Abd al-Latif proposes presenting the method followed by Plato and Aristotle in their respective philosophies. In doing that, he follows al-Farabi, summarizes and literally quotes al-Farabi’s Philosophy of Plato and Aristotle (Rosenthal &amp; Walzer 1943; Mahdi 1961, 2001), where both Platonic dialogues and Aristotelian treatises are set out in such an order as to constitute a systematic and progressive investigation of all the areas of philosophical research.