For the more a man limits himself, the nearer he is on the other hand to what is limitless; it is precisely those who are apparently aloof from the world who build for themselves a remarkable and thoroughly individual world in miniature, using their own special equipment, termit-like.

The idea of Jewish unity, of a plan, an organization, unfortunately exists only in the brains of Hitler and Streicher.

A first premonition of the rich variety of life had come to him; for the first time he thought he had understood the nature of human beings - they needed each other even when they appeared hostile, and it was very sweet to be loved by them.

All my life I have been passionately interested in monomaniacs of any kind, people carried away by a single idea. The more one limits oneself, the closer one is to the infinite; these people, as unworldly as they seem, burrow like termites into their own particular material to construct, in miniature, a strange and utterly individual image of the world.

All I know is that I shall be alone again. There is nothing more terrible than to be alone among human beings.

In 1938, after Austria, our universe had become accustomed to inhumanity, to lawlessness, and brutality as never in centuries before. In a former day the occurrences in unhappy Vienna alone would have been sufficient to cause international proscription, but in 1938 the world conscience was silent or merely muttered surlily before it forgot and forgave.

But, in history, practical usefulness never determines the moral value of an achievement. Only the person who increases the knowledge humanity has about itself and enhances its creative consciousness permanently enriches humanity.