Ideas and principles that do harm are as a rule, though not always, cloaks for evil passions.

You must believe that you can help bring about a better world.

The saviors of the world, society's last hope.

The human race may well become extinct before the end of the century.

There is a possibility in human minds of something mysterious as the night-wind, deep as the sea, calm as the stars, and strong as Death, a mystic contemplation, the “intellectual love of God.” Those who have known it cannot believe in wars any longer, or in any kind of hot struggle. If I could give to others what has come to me in this way, I could make them too feel the futility of fighting. But I do not know how to communicate it: when I speak, they stare, applaud, or smile, but do not understand.

Dogmatism is the greatest of mental obstacles to human happiness.

For a good notation has a subtlety and suggestiveness which at times make it seem almost like a live teacher.