John Shook is Vice President for Research and Senior Research Fellow at the Center for Inquiry Transnational in Amherst, N.Y. He received his PhD in philosophy at the University at Buffalo and was a professor of philosophy at Oklahoma State University for six years. Among his current responsibilities are the Center for Inquiry's Naturalism Research Project and the expansion of the Center's Jo Ann Boydston Library of American Philosophical Naturalism.In this discussion with D.J. Grothe, Shook describes the relationship of naturalism to the worldview based upon the sciences. He explores whether the sciences necessarily lead to naturalism, and to what extent the sciences can yield truth about human morality and the good life. He details a recent debate he had with the famous Christian philosopher William Lane Craig, and responds to some of Craig's challenges against naturalism and arguments in support of supernaturalism. And he examined what possible meaning (ultimate and otherwise) human life can have if there is no supernatural, "cosmic" significance.