Jorge J. E. Gracia is Samuel P. Capen Chair and Distinguished Professor of Philosophy at the State University of New York at Buffalo. He is author of several books, including Hispanic/Latino Identity (Blackwell, 2000) and How Can We Know What God Means? (2001). He is editor, with Timothy B. Noone, of A Companion to Philosophy in the Middle Ages (Blackwell, 2003).

Gregory M. Reichberg is Senior Research Fellow at the International Peace Research Institute, Oslo (PRIO) and associate editor of the Journal of Military Ethics. He has published widely on the ethics of war and peace, and on topics in Thomistic philosophy.

Bernard N. Schumacher is Privatdocent of Philosophy at the University of Fribourg, Switzerland. He is the author of Une philosophie de l'espérance (2000) and Auseinandersetzung mit dem Tode (2003). He is also the editor of several books, including Penser l'homme et la science (1996).