Chantal Delsol is professor of philosophy at the University of Marne-la-Vallée and an elected member of the Académie des Sciences Morales et Politiques (Institut de France). She is the author of numerous books, including La Fin de la Chrétienté (The end of Christianity).

Andrew Kelley is professor of philosophy and chair of the Department of Philosophy and Religious Studies at Bradley University. He writes on twentieth-century French philosophy and has translated books from French and German philosophers.

Daniel J. Mahoney is a senior fellow at the Claremont Institute and professor emeritus at Assumption University.