Aquinas on Emotion's Participation in Reason

Aquinas on Emotion's Participation in Reason aims to present Aquinas's answer to the perennial and now popular question: In what way can the emotions be rational? For Aquinas, the starting point of this inquiry is Aristotle's claim (EN. I. 13) that there are three parts to the soul: 1) the rational part, 2) the non-rational part which can participate in reason, and 3) the non-rational part that does not participate in reason. It is the extent to which the second part (the sense appetites, t...