Well, I have considered myself to be very fortunate in that I have been able to do mostly only that which my inner self told me to do... I am also aware that I do receive much criticism from the outside world for what I do and some people actually get angry at me. But this does not really touch me because I feel that these people do not live in he same world as do I.

People are like bicycles. They can keep their balance only as long as they keep moving.

To me it is enough to wonder at the secrets

The scientist finds his reward in what Henri Poincare calls the joy of comprehension, and not in the possibility of application to which any discovery may lead.

Conventional words or other signs have to be sought for laboriously only in a second stage, where the associative play already referred to is sufficiently established and can be reproduced at will.

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

The magic of compounding interest is truly the eighth wonder of the world!