Mary M. Keys is Professor of Political Science at the University of Notre Dame (Indiana, United States). Keys works in political theory and the history of political thought with a focus on Christianity, ethics, and politics. She is the author of two books, both published by Cambridge University Press: Aquinas, Aristotle, and the Promise of the Common Good (2006) and Pride, Politics, and Humility in Augustine’s City of God (2022). Her current scholarship includes a study of the impact of Augustine’s thought on humility in medieval and early modern political thought and a Cambridge “Element” on political aspects of Augustine’s scriptural commentaries. Keys has been a visiting scholar at the University of Chicago and Harvard University. Her M.A. and Ph.D. are from the University of Toronto and her B.A. is from Boston College.