Born in Ann Arbor, Michigan, Alvin Plantinga is one of the most important and influential philosophers of the twentieth and early twenty-first centuries. His publications range over a wide variety of fields, but his most enduring contributions have been in metaphysics, epistemology, and, especially, the philosophy of religion. He is best known for his work on the metaphysics of necessity and possibility, for his defense of the view that knowledge is to be analyzed partly in terms of proper function, for his development of the "free will defense" against the so-called "logical problem of evil," for his many and vigorous defenses of the rationality of religious belief, and for his much-discussed "evolutionary argument against naturalism."

Plantinga earned his BA in philosophy and psychology from Calvin College in 1953, and he cites his experience at Calvin as perhaps the single most significant intellectual influence in his...