On the Genealogy of Morality is a history of ethics, a text about interpreting that history, and a primer on interpretation in general. It also has elements of archaeology, sociology, anthropology, psychology, and etymology. Nietzsche’s history-based approach to the development of morality, as well as his keen understanding of how power relations—especially the role played in this process by social, class, and racial divisions—continue to shape our ethical norms and standards of behavior. His reading of history and the human capacity for rationalization anticipated, influenced, and underpinned the interpretative techniques and strategies that emerged as dominant in the humanities and social sciences over the past several decades. In this age of “alternative truths,” Nietzsche’s insight into the nature of interpretation is more valuable than ever before.