Anthony “AJ” Marsh’s research at the James Madison Program centers on natural rights in the thought of Thomas Aquinas. He specializes in Thomistic ethics and metaphysics, as well as the philosophy of religion, especially the ethics and epistemology present in the mysticism of Teresa of Ávila. His dissertation, “Misery and Its Escape: Thomas Aquinas and Teresa of Ávila on the Bad Life,” examined how those thinkers define and treat the failure to attain happiness, i.e., human flourishing.

Marsh holds a PhD in philosophy from Columbia University, and an AB in philosophy from Brown University.