The physicists say that I am a mathematician, and the mathematicians say that I am a physicist. I am a completely isolated man and though everybody knows me, there are very few people who really know me.

Falling in love is not at all the most stupid thing that people do - but gravitation cannot be held responsible for it.

I wouldn't want to live if I did not have my work. In any case, it's good that I'm already old and personally don't have to count on a prolonged future.

It is the duty of every citizen according to his best capacities to give validity to his convictions in political affairs.

God did not create evil. Just as darkness is the absence of light, evil is the absence of God.

Life is like a bicycle; keep moving on to maintain balance.

Don't let your brain interfere with your heart.