  Aristotle's works had, of course, been made available to scholars via translation from Greek and Arabic sources during the medieval period (Twelfth through Fourteenth centuries), and a familiarity with Aristotle's logic and natural philosophy became a requirement for an Arts degree at medieval universities and thus an integral part of the training of those who wished to pursue advanced studies in medicine, theology or canon or civil law. But the number of philosophers or theologians who could access the Aristotelian corpus in the original Greek was quite small, and there was an extensive body of works in Greek devoted to commentaries and criticisms of the Stagirite's positions that would not become available to a majority of readers until the Renaissance provided accessible translations. It is not surprising that Patrizi devoted much of his time and effort to these endeavors, and his doing so would have a profound effect on the way in which he and many of his contemporaries and successors would come to interpret the Peripatetic system.