Theodore Metochites’ Aristotelian paraphrases (c. 1312), covering all 40 books of the Stagirite’s extant works on natural philosophy, constitute one of the major achievements of late Byzantine learning. This volume offers the first critical edition of Metochites’ paraphrases of the three books of the De anima, accompanied by an introduction and an English translation with an apparatus of parallel passages in Aristotle’s ancient commentators. The first part of the introduction presents and evaluates the sources for the text, consisting of thirteen Greek manuscripts, a 15th-century...