Alvin Plantinga has been called "the most important philosopher of religion now writing." After taking his Ph.D. from Yale in 1958, he taught at Wayne State University (1958-63), Calvin College (1963-82), and has filled the John A. O'Brien Chair of Philosophy at the University of Notre Dame since 1982. He was president of the Western Division of the American Philosophical Association during 1981-82 and president of the Society of Christian Philosophers, which he helped to found, from 1983 to 1986. He frequently directs summer seminars for the National Endowment