It is the intention of this paper is to introduce some contemporary relevance of Descartes’ dualism with special reference to Gilbert Ryle’s criticism. Ryle’s explicit target in The Concept of Mind is what he calls the “official doctrine”, which results, he tells us, at least in part from Descartes’ appreciation that Galilean methods of scientific discovery were fit to provide mechanical explanations for every occupant of space, together with Descartes’ conviction that the mental could not simply be a more complex variety of the mechanical. Whether or not every aspect of the resulting “two-world” view is properly attributed to Descartes. It is familiar view, which has widely become known as Cartesianism in Anglo-American philosophy. It has distinctive ontological and epistemological commitments.