Abstract

This chapter introduces the reader to Aquinas’s substantive commentary on Aristotle’s _De Anima_ (_On the Soul_). The relation of the work of Aquinas to his important Greek forebear is a topic of some dispute. Nonetheless, this analysis argues that Aquinas, in his account of inner sense in his _Commentary on the De Anima_, in at least one important way differs from Aristotle’s own analysis in the _De Anima_. Aristotle, in this conceptually muddy account, does not articulate the separate and distinct faculties of inner sense. Aquinas, on the other hand, in the _Commentary_, the _Summa Theologiae_, and the _Summa Contra Gentiles_, renders a threefold distinction of the faculties of inner sense.