This book brings together the best of the unpublished works of H. Richard Niebuhr, one of the outstanding American religious thinkers of this century. The collection includes lectures, sermons, and essays, some of which Niebuhr delivered at major universities to general audiences and others that he prepared for circulation and discussion among colleagues at Yale and elsewhere. Contemporaneous events, religious figures, important issues in theology, and interpretations of American history and culture - all engaged Niebuhr's broad-ranging interest and revealed his concern with integrating theology and practical living.