At present every coachman and every waiter argues about whether or not the relativity theory is correct.

Do not grow old, no matter how long you live. Never cease to stand like curious children before the Great Mystery into which we were born.

Is it not a terrible thing to be forced by society to do things which all of us as individuals regard as abominable crimes?

In living through this great epoch, it is difficult to reconcile oneself to the fact that one belongs to that mad, degenerate species that boasts of its free will. How I wish that somewhere there existed an island for those who are wise and of good will. In such a place even I should be an ardent patriot!

Mere praise of peace is easy and ineffective. What is needed is acitve participation in the fight against war and everything which leads to it.

The man with the greatest soul will always face the greatest war with the low minded person.

Imagination is the most powerful force in the universe.