The paper argues that Hume's philosophy is best described as sceptical materialism. It is argued that the conjunction is not self-contradictory as long as 'scepticism' is understood in its ancient sense, as the denial of knowledge of the essences of things. It is further argued that scepticism (thus understood) and materialism are natural bedfellows, since a thoroughgoing materialism denies any special status to human rational powers. The content of the "Treatise of Human Nature" is then shown to conform to this (...) understanding: the "Treatise" consistently employs an implicitly materialist faculty psychology in order to arrive at its sceptical standpoint. Finally, it is shown that Hume's philosophy can be understood to be a sceptical rewriting of the dogmatic materialism of Hobbes. (shrink)