The State is made for Mankind, not mankind for the state

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

The fear of death is the most unjustified of all fears, for there's no risk of accident for someone who's dead.

I very rarely think in words at all. A thought comes, and I may try to express in words afterwards.

Man has an intense desire for assured knowledge.

The most beautiful thing we can experience is the mysterious. It is the source of all true art and science.

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