Swiss theologian Hans Kung may be the most provocative leader in Roman Catholic thought today, with heroic appeal to progressive Catholics, Protestants, and secular thinkers. In this book, John J. Kiwiet shows Kung as the mature scholar, devoted pastor, and eloquent speaker in conflict with the Vatican in Rome, resistant to its leadership and in polemic with its theology. Believing that the problems of secular humanity cannot be solved without the involvement of religious humanity, Kung calls the church to take a decisive stance in the issues of the day rather than merely reformulate issues of the past. Kung has received a wide hearing among Catholics and Protestants, and his works On Being a Christian and Does God Exist? remain crucial in contemporary dialogue. Kiwiet's book is an invaluable aid in understanding Kung, his life, his writings, and his ongoing significance as a shaper of modern theology. The Makers of the Modern Theological Mind series remains a must-read for anyone eager to understand these theologians and their impact on today's church.