The events of the twentieth century, he says there, raise real doubts about the fate of justice in this world. But if the question cannot be answered in the affirmative, and people are largely amoral and self-centered, then "one might ask with Kant whether it is worthwhile for human beings to live on the earth." We must therefore, he says, begin "with the assumption that a reasonably just political society is possible," and with the related assumption that human beings have enough of a moral nature that they can be moved by considerations of fairness and respect. Beginning from such assumptions, he sets out to produce a plausible blueprint for an affirmative answer to the question of political stability.
-'John Rawls and Our Plural Nation' [via 3quarksdaily]