The release of atomic power has changed everything except our way of thinking ... the solution to this problem lies in the heart of mankind. If only I had known, I should have become a watchmaker. (1945)

I have no particular talent. I am merely inquisitive.

If at first the idea is not absurd, then there is no hope for it.

You cannot prepare for war and peace at the same time.

Genius is 1% talent and 99% percent hard work.

But the creative principle resides in mathematics. In a certain sense, therefore, I hold true that pure thought can grasp reality, as the ancients dreamed.

There are two ways to live: you can live as if nothing is a miracle; you can live as if everything is a miracle.