Laws alone can not secure freedom of expression; in order that every man present his views without penalty there must be spirit of tolerance in the entire population.

Relativity applies to physics, not ethics.

In music I do not look for logic. I am quite intuitive on the whole and know no theories. I never like a work if I cannot intuitively grasp its inner unity (architecture).

I do not share the crusading spirit of the professional atheist whose fervor is mostly due to a painful act of liberation from the fetters of religious indoctrination received in youth. I prefer an attitude of humility corresponding to the weakness of our intellectual understanding of nature and of our own being.

The world is a dangerous place to live; not because of the people who are evil, but because of the people who don't do anything about it.

Don't wait for miracles, your whole life is a miracle.

Fear or stupidity has always been the basis of most human actions.