Susan Meld Shell is Professor and Chair of the Department of Political Science at Boston College, Massachusetts. She is author of Kant and the Limits of Autonomy (2009), The Embodiment of Reason: Kant on Spirit, Generation and Community (1996) and The Rights of Reason: A Study of Kant's Philosophy and Politics (1980). She is co-editor (with Robert Faulkner) of America at Risk: Threats to Liberal Self-Government in an Age of Uncertainty (2009). Richard Velkley is Celia Scott Weatherhead Professor of Philosophy at Tulane University, New Orleans. He is the author of Heidegger, Strauss, and the Premises of Philosophy: On Original Forgetting (2011), Being after Rousseau: Philosophy and Culture in Question (2002) and Freedom and the End of Reason: On the Moral Foundation of Kant's Critical Philosophy (1989). He is editor of Freedom and the Human Person (2007) and Dieter Henrich's The Unity of Reason: Essays on Kant's Philosophy (1994).