When Reinhold Niebuhr retired from teaching in 1960 at the age of sixty-eight, he was famous for espousing Cold War militarism, blasting liberal theology and the Social Gospel, and urging the Civil Rights Movement to proceed with patient moderation. In his retirement years he substantially changed or refashioned these positions, transmuting his legacy and the meaning of Niebuhrian realism. The Social Gospel tried to moralize the public square, but Niebuhr said that politics is a struggle for power driven by interest and will-to-power. The Social Gospel taught that a cooperative commonwealth is achievable. By the end of his career, Niebuhr said the ideal of a good society must be given up. Social ethicists ever since have struggled with both sides of his legacy.