This work explores the insights and theories of Mark Twain and Sigmund Freud in the field of psychology. Though at first glance these two men seem to constitute an unlikely pairing, each formulated a comprehensive understanding of individual and group psychology and subsequently applied that understanding to the realms' religion, morality, patriotism and politics. After an extensive overview of each man's philosophy, the author examines the effect of this reading of Twain's understanding of human psychology on Twain studies and on our own sense of contemporary events.