William Temple, late Archbishop of Canterbury, on meeting Reinhold Niebuhr for the first time, commented, At last I've met the troubler of my peace. Of him John Baillie, the distinguished theologian, also remarked, Intellectually, Niebuhr is head and shoulders, he is legs and ankles above any other American. The full range of Niebuhr's political thought -- in his own writing -- is here made available in one convenient volume. Using materials from...