First published in 1985, this widely praised biography of Reinhold Niebuhr, perhaps the most important American theologian of the twentieth century, is once again in print. "By drawing for the first time on the vast correspondence between Niebuhr and his secular colleagues, Mr. Fox demonstrates that no American theologian ever had such an impact on unbelievers. And no one has since. . . . [Fox] paints a lively picture of the beloved teacher [and] frenetic political organizer . . . Niebuhr seems to have been."--Harvey Cox, The New York Times "Based on meticulous research which includes numerous interviews and a declified FBI file, the book is written with a verve, grace, and depth of understanding worthy of its subject. Fox is remarkably successful in fusing criticism with sympathetic appreciation and in relating Niebuhr's evolving thought to his public career and private self-scrutiny."--David Brion Davis, The New York Review of Books Fox's book is bound to establish itself as an indispensable contribution not just to our understanding of Niebuhr but to an understanding of the history of twentieth-century liberalism, which Niebuhr did so much to redefine."--Christopher Lasch, In These Times