Douglas Rasmussen is a professor of philosophy at St. John’s University and co-author (along with Douglas J. Den Uyl) of several books on ethics and political philosophy including Liberty and Nature: An Aristotelian Defense of Liberal Order (1991), Liberalism Defended: The Challenge of Post-Modernity (1997), and Norms of Liberty: A Perfectionist Basis for Non-Perfectionist Politics (2005).