John Courtney Murray, one of the century's foremost theologians, was the author of We Hold These Truths (Sheed & Ward, 1960), The Problem of God, Yesterday and Today (Yale University Press, 1964), and The Problem of Religious Freedom (The Newman Press, 1965).

J. Leon Hooper, SJ, is a senior research fellow at Woodstock Theological Center, Georgetown University. He is the editor of Religious Liberty: Catholic Struggles with Pluralism (Westminster/John Knox Press, 1993) and author of The Ethics of Discourse: The Social Philosophy of John Courtney Murray (Georgetown University Press, 1986).