Abstract
Motivating my discussion is a puzzle in Spinoza’s account of the primary affects – his shift away from adopting Descartes’s list of six primitive passions in the Short Treatise to the three primary affects in the Ethics. I lay out this puzzle in Section 1. In Section 2, I approach this puzzle by considering the taxonomy offered by Descartes of the basic or primitive passions. In considering Descartes, I will also briefly consider Aquinas’s view since Descartes positions himself as rejecting the Thomist account. Doing so brings out that the basic passions highlight structures of cognition for these thinkers. In Section 3, I return to Spinoza and consider what light his pared down account of the primary affects can shed on his account of the human mind.