What the individual can do is to give a fine example, and to have the courage to uphold ethical values .. in a society of cynics.

I don't teach my students, I provide the circumstances in which they can learn.

Life isn't worth living, unless it is lived for someone else.

You can't solve problems with the same thinking that caused them.

God is a scientist, not a magician.

My position concerning God is that of an agnostic. I am convinced that a vivid consciousness of the primary importance of moral principles for the betterment and ennoblement of life does not need the idea of a law-giver, especially a law-giver who works on the basis of reward and punishment.

The aim (of education) must be the training of independently acting and thinking individuals who, however, see in the service to the community their highest life problem.