Stephen Maitzen is the W. G. Clark Professor of Philosophy at Acadia University, Nova Scotia, Canada. His main interests are skepticism and the theory of knowledge; vagueness and ontology; the conceptual impact of theism on human morality; the concept of ultimacy in regard to being, value, and purpose; and the perennial question “Why is there something rather than nothing at all?” He earned his B.A. with Highest Distinction from Northwestern University and his M.A. and Ph.D. from Cornell University. He has published in numerous academic journals as well as in some popular venues such as Free Inquiry magazine. In 2006 he received Acadia’s highest award for excellence in teaching.