   The cornerstone of Reid's reply to the third form of evil—moral evil—is human freedom. Lectures on Natural Theology does not revisit his theory of human freedom and agency, but these issues are discussed thoroughly in Active Powers. He applies this theory of freedom to moral evil in order to conclude that “all moral evil then is not properly the doing of God but of men, who by abusing their power are liable to misery &amp; are then justly punished for their misconduct” (Natural Theology 103).