F. Russell Hittinger is Warren Chair of Catholic Studies at the University of Tulsa, where he is also a research professor of Law. Hittinger has taught at Fordham University, in the School of Philosophy at the Catholic University of America, and as a visiting professor at New York University and Princeton University. In 1991 and 1994, he was a visiting professor at the Pontifical University Regina Apostolorum in Rome. His research focuses on the intersection of philosophy, religion, and law. ​Hittinger is on the governing council of the Pontifical Academy of St. Thomas Aquinas. ​He has published more than 100 articles and reviews in addition to several books, including Thomas Aquinas and the Rule of Law and The First Grace: Rediscovering the Natural Law in a Post-Christian World (2003). His books and articles have appeared in the University of Notre Dame Press, Oxford University Press, Columbia University Press, Fordham University Press, Review of Metaphysics, Review of Politics, and several law journals.