This article places Robert Johann's ethics of responsibility within the context of his evolved philosophical position which is decisively influenced by the thought of St. Thomas Aquinas and John Dewey. Building on a perspective that he called “ontological pragmatism,” Johann began to explore the ethic of responsibility developed by H. Richard Niebuhr in The Responsible Self. However, Johann's version is significantly different from that of Niebuhr. After describing Johann's ethics of responsibility, I conclude by criticizing his moral methodology as insufficiently developed and by charging that his anthropology fails to account for certain crucial dimensions of human experience.