It is fair, therefore, to assume that growing rationality is a guarantee of man's growing morality. - Reinhold Niebuhr

The sad duty of politics is to establish justice in a sinful world.

Man does not know himself truly except as he knows himself confronted by God. Only in that confrontation does he become aware of his full stature and freedom and of the evil in him.

The final sin of man, said Luther truly, is his unwillingness to concede that he is a sinner. The significant contribution of modern culture to this perennial human inclination lies in the number of plausible reasons which it was able to adduce in support of man's good opinion of himself.