"Religious Belief and Public Morality: A Catholic Governor's Perspective". John A. O'Brien Lecture in the University of Notre Dame's Department of Theology, archives.nd.edu. September 13, 1984.
"Human, All Too Human: A Book for Free Spirits". Book by Friedrich Nietzsche, transl. by Helen Zimmern, Section IX, "Man Alone with Himself"/ aphorism 633, 1909-1913.