In Representational Ideas: From Plato to Patricia Churchland Watson argues that all intelligible theories of representation by ideas are based on likeness between representations and objects. He concludes that 17th century materialist criticisms of having' mental representations in the mind apply to contemporary material representations in the brain, as proposed by neurophilosophers. The argument begins with Plato, with particular stress on Descartes, Malebranche, and Arnauld. He then proceeds with an examination of the picture theory developed by Wittgenstein, Carnap, and Goodman,...

Phenomenalism, idealism, spiritualism, and other contemporary philo sophical movements originating in the reflective experience of the cogito witness to the immense influence of Descartes. However, Carte sianism as a complete metaphysical system in the image of that of the master collapsed early in the 18th century. A small school of brilliant Cartesians, almost all expert in the new mechanistic science, flashed like meteors upon the intellectual world of late 17th century France to win well-deserved recognition for Cartesianism. They were accompanied by a scintillating comet, Ma1ebranche,...