About Joseph Boyle Joseph Boyle is a professor in the Department of Philosophy, Principal of St. Michael's College, and a member fo the Centre for Bioethics at the University of Toronto. Books by Joseph Boyle Nuclear Deterrence, Morality and Realism by (author) John Finnis, Joseph Boyle & Germain Grisez Philosophical Perspectives on Bioethics edited by Joseph Boyle & Leonard Sumner