Abstract
On a cold Sunday afternoon in February, the fifty-eighth Aquinas Lecture was presented at Marquette University by Louis Dupré. His unassuming gentle manner coupled with his expert command of philosophy, theology, science, and literature left no doubt that those assembled were in the presence of greatness. Following his presentation, an expanded version of this lecture was made available in print. This small volume takes its well-deserved place as Dupré's twelfth book, in addition to the five he has edited.