The chief source of man's inhumanity to man seems to be the tribal limits of his sense of obligation to other men.
Reinhold NiebuhrThe idea that the profits of capital are really the rewards of a just society for the foresight and thrift of those who sacrificed the immediate pleasures of spending in order that society might have productive capital, had a certain validity in the early days of capitalism, when productive enterprise was frequently initiated through capital saved out of modest incomes.
Reinhold NiebuhrOne of the most pathetic aspects of human history is that every civilization expresses itself most pretentiously, compounds its partial and universal values most convincingly, and claims immortality for its finite existence at the very moment when the decay which leads to death has already begun.
Reinhold Niebuhr