• On the basis of Descartes’s account of the passions of the soul, we argue that current interoception-based theories of emotions cannot account for the hallmark of a passion of the soul, i.e., that its effects are felt as being in the soul itself. We also pay attention to the epistemic functions of the passions and to Descartes’s category of emotions that are caused and occur in the soul alone. Certain passions of the soul and certain internal emotions are similar to what are today called ‘episte…Read more