
معرفی
John O'Callaghan is an Associate Professor of Philosophy at the University of Notre Dame, affiliated with the College of Arts and Letters. He holds a PhD in Philosophy from the University of Notre Dame (1996), alongside advanced degrees in Mathematics and Physics. His research focuses on Medieval Philosophy, particularly the works of Thomas Aquinas, with expertise in Thomistic Metaphysics, Ethics, and Virtue Ethics. He has served as Director of the Jacques Maritain Center and is a permanent member of the Pontifical Academy of St. Thomas Aquinas since 2010.
Education: BA in Physics and Mathematics (St. Norbert College, 1984), MS in Mathematics (Notre Dame, 1986), PhD in Philosophy (Notre Dame, 1996). His work bridges analytic and Thomistic traditions, addressing themes like divine mercy, human dignity, and the intersection of faith and reason.
Research interests include Aquinas’ philosophy of mind, ethics, and metaphysics, with a focus on mercy, creation, and the theological virtues. His articles analyze Aquinas’ Five Ways, the nature of existence, and the philosophical foundations of virtue ethics. Recent work explores themes like ‘failed persons’ and the ethical implications of mercy in contemporary contexts.
Notable awards include the Aquinas Medal (University of Dallas, 2019) and leadership roles in academic organizations like the American Catholic Philosophical Association. He has delivered over 160 lectures globally, including plenary addresses at conferences in Europe and the U.S. His service includes roles at the Jacques Maritain Center and contributions to disability advocacy within the Catholic Church.
His academic service spans editorial work, committee roles, and interdisciplinary initiatives, including conferences on natural law and scientific modeling. Teaching spans undergraduate and graduate courses on Aquinas, ethics, and medieval philosophy.





