Miller's metaphysics, including his approach to God, is broad, deep, and original, with the potential to make a fruitful contribution to contemporary philosophy. Yet it has not received the critical attention it deserves.

Miller's work deserves critical attention because of its thorough and original defense of three highly controversial positions: that existence is a real property of concrete individuals; that it is possible to prove, without assuming any principle of sufficient reason, that there is an uncaused cause of the universe; and that the uncaused cause is the simple God of...