The penalty of affluence is that it cuts one off from the common lot, common experience, and common fellowship. In a sense it outlaws one automatically from one's birthright of membership in the great human family.

Of the twenty-two civilizations that have appeared in history, nineteen of them collapsed when they reached the moral state the United States is in now.

No being can be what he is unless he is putting his essence into action in his field.

My advice to any traveler who is traveling in order to learn would be: 'Fight tooth and nail to be permitted to travel in what is technically the least efficient way.'

The aim of all education is, or should be, to teach people to educate themselves.

Civilizations, I believe, come to birth and proceed to grow by successfully responding to successive challenges. They break down and go to pieces if and when a challenge confronts them that they fail to meet.

It is a paradoxical but profoundly true and important principle of life that the most likely way to reach a goal is to be aiming not at that goal itself but at some more ambitious goal beyond it.