David F. Kelly is a professor of theology and health care ethics and Director of the Health Care Ethics Center at Duquesne University. He has studied in Louvain, Belgium, and in Toronto and has garnered much practical experience from his work at St. Francis and Mercy hospitals in Pittsburgh.Stephen J. Pope is associate professor in the Boston College Department of Theology. He is the author of The Evolution of Altruism and the Ordering of Love and editor of The Ethics of Aquinas.