Abstract

Dispositional essentialists hold that the world is populated by irreducibly dispositional properties, called “potencies,” “powers,” or “dispositions.” Each of these properties is marked out by a characteristic stimulus and manifestation bound together in a metaphysically necessary connection. Dispositional essentialism faces an old objection from David Hume. Hume argues, in his Treatise of Human Nature, that we have no adequate idea of necessary connection. The epistemology of the Treatise allegedly rules the idea out. Dispositional essentialists usually respond by attacking Hume’s epistemology. In this paper, I give an alternative response. I argue that we can draw an idea of necessary connection from the Treatise’s relations of ideas. We are able, therefore, to overcome Hume’s objection without needing to attack his epistemology or its related principles.