Compared to philosophical books generally published, this one is truly refreshing for its style, but particularly for its provocative approach to a traditional subject. The author argues that philosophers and theologians of our time for the most part discuss the question of the existence of God as if nothing new can be added to the generally held positions as expressed by St. Thomas. Professor Sillem insists that the traditional way of thinking about God should generate and bring forth new thinking within the framework of the venerable, lest theistic philosophy ""fossilize"". This then is a book on what the author contends St. Thomas considered an argument for the existence of God might to be. Of special appeal is the concluding section in which the author re- incarnates Aquinas and Kent, and has them debate before a group of modern philosophers. As one would expect, St. Thomas masters his opponents. But the author's device does serve to inject St. Thomas' ideas into the millieu of modern day thinking Ways Of Thinking About God is indeed a stimulating intellectual experience which will help to illumine little explored areas of method of argument especially for scholastic circles.