Georges Dicker is Professor of Philosophy and Director of the Center for Philosophic Exchange at SUNY Brockport. He is the author of Dewey's Theory of Knowing (1976), Perceptual Knowledge: An Analytical and Historical Study (1980), Descartes: An Analytical and Historical Introduction (1993), Hume's Epistemology and Metaphysics: An Introduction (1998), and numerous journal articles.