Powerful Qualities and the Metaphysics of Properties

Abstract In debates about the metaphysics of properties, many have claimed that properties are powers. According to the powers view, a property's nature disposes objects to behave in certain ways in response to certain stimuli. For example, the property of fragility disposes objects to smash when a force is applied to them. But how should we understand powers? There has recently been a surge of interest in the powerful qualities view of properties. Other views in the field either claim that properties are pure powers, or that they are qualities . The powerful qualities view rejects this dichotomy, saying that properties are both powers and qualities. In this paper, I distinguish some versions of the powerful qualities view, and some of the reasons to hold it. I also outline one of the most exciting elements of the view, which is its relation to the philosophy of mind.