John R. Shook is Vice President for Research and Senior Research Fellow at the Center for Inquiry, and Research Associate in Philosophy at the University at Buffalo. He is author of Dewey's Empirical Theory of Knowledge and Reality, editor of Pragmatic Naturalism and Realism, and editor of the Dictionary of Modern American Philosophers. He is also co-editor of the journal Contemporary Pragmatism. Joseph Margolis is Laura H. Carnell Professor of Philosophy at Temple University. His recent books include The Flux of History and the Flux of Science, Historied Thought, Constructed World: A Conceptual Primer for the Turn of the Millennium, Interpretation Radical but Not Unruly: The New Puzzle of the Arts and History, and Reinventing Pragmatism: American Philosophy at the End of the Twentieth Century.