Diogenes Allen is the former Stuart Professor of Philosophy at Princeton Theological Seminary and an Episcopal priest. He is known as one of the greatest Christian philosophers and apologists of the late twentieth century, whom many have compared to C.S. Lewis. He lives in Princeton, New Jersey.

"Diogenes Allen has done us the service of writing this book, which is at once theologically substantial and genuinely popular."—St. Luke's Journal of Theology

"Good Christian apologetic, written with graceful modesty, aimed at real problems of belief and conduct, and informed by a wide-ranging philosopher's mind."—Theology Today"This little book is a treasure. I commend it partly for its obvious literary merit as a wonderfully effective short treatment of its subject."—Reformed Journal