Ryan G. Duns, SJ, is an associate professor of theology at Marquette University. In addition to many articles and book chapters, he is the author of Spiritual Exercises for a Secul...view moreRyan G. Duns, SJ, is an associate professor of theology at Marquette University. In addition to many articles and book chapters, he is the author of Spiritual Exercises for a Secular Age: Desmond and the Quest for God.view less