Abstract

This paper argues that Descartes conceives of theoretical reason in terms derived from practical reason, particularly in the role he gives to the passions. That the passions serve — under normal circumstances — to preserve the union of mind and body is a well-known feature of Descartes's defense of our native make-up. But they are equally important in our more purely theoretical endeavors. Some passions, most notably wonder, provide a crucial source of motivation in the search after truth, and also serve to reinforce memory. Our cognitive successes and failure scan also be tracked by passions and trains of passions.