My work is mostly in epistemology, philosophy of religion, and metaphysics, with some in ethics and metaethics. I've published on a wide range of issues, but have focused particularly on a priori knowledge, debunking arguments, the cognitive science of religion and the rationality of religious belief, and atonement. I teach a wide range of courses from introduction to philosophy and philosophy in everyday life, to ethics and contemporary moral issues, to epistemology, metaphysics, philosophy of religion, history of early modern, history of analytic philosophy, and philosophical writing and research.