A hundred times every day I remind myself that my inner and outer life are based on the labors of others.

I sometimes ask myself how it came about that I was the one to develop the theory of relativity. The reason, I think, is that a normal adult never stops to think about problems of space and time. These are things which he has thought about as a child. Bu t my intellectual development was retarded,as a result of which I began to wonder about space and time only when I had already grown up.

Without deep reflection one knows from daily life that one exists for other people.

It is the theory which decides what we can observe

As long as there are sovereign nations possessing great power, war is inevitable.

You cannot beat a roulette table unless you steal money from it.

Experience is knowledge. All the rest is information.