Robert Audi is John A. O'Brien Professor of Philosophy at the University of Notre Dame. He is the author of numerous books and articles. His recent books include Moral Perception (2013), Democratic Authority and the Separation of Church and State (2011), Rationality and Religious Commitment (2011), Epistemology: A Contemporary Introduction to the Theory of Knowledge (2010) and Moral Value and Human Diversity (2007). Audi is a past president of the American Philosophical Association, a former editor of the Journal of Philosophical Research, and a former director of the National Endowment for th...