I gambled on having the strength to live two lives, one for myself and one for the world.

Western civilization, because of fortuitous historical circumstances, has spread itself more widely than any other local group that has so far been known.

The trouble with life isn't that there is no answer, it's that there are so many answers.

liberty is the one thing no man can have unless he grants it to others.

Success and failure in our own national economy will hang upon the degree to which we are able to work with races and nations whose social order and whose behavior and attitudes are strange to us.

Culture, with its processes and functions, is a subject upon which we need all the enlightenment we can achieve, and there is no direction in which we can seek with greater reward than in the facts of pre-literate societies.

Society in its full sense ... is never an entity separable from the individuals who compose it. No individual can arrive even at the threshold of his potentialities without a culture in which he participates. Conversely, no civilization has in it any element which in the last analysis is not the contribution of an individual.