Bachelor, Catholic University America, 1949. Master of Arts, Catholic University America, 1950. Postgraduate, University Paris, 1952.
Doctor of Philosophy, University Notre Dame, 1956.
Instructor, U. Notre Dame, 1953-1956; assistant professor, U. Notre Dame, 1956-1962; associate professor, U. Notre Dame, 1962-1966; professor, U. Notre Dame, since 1966; dean, College Arts and Letters, 1968-1976; O'Hara Distinguished professor philosophy, College Arts and Letters, 1976-1984; Cavanaugh Distinguished professor humanities, College Arts and Letters, since 1984.
Member of North Central Association (executive commissioner 1984-1989), American Catholic Philosophical Association (president 1990-1991), American Philosophical Association, Phi Beta Kappa (senator 1982—2000, vice president 1994-1997, president 1997—2000).
Married Mary Patricia Burns, September 5, 1953. Children: Jessica, Christopher, Veronica, Benedict, Jennifer.