No problem is ever solved in the same consciousness thas was used to create it.

Einstein was once asked how many feet are in a mile. Einstein's reply was "I don't know, why should I fill my brain with facts I can find in two minutes in any standard reference book?

The creative principle [of science] resides in mathematics.

I cannot accept any concept of God based on the fear of life or the fear of death, or blind faith. I cannot prove to you that there is no personal God, but if I were to speak of him I would be a liar.

They come into being not through demonstration but through revelation, through the medium of powerful personalities.

The mathematician knows some things, no doubt, but not those things one usually wants to get from him.

To know what is impenetrable to us really exists, manifesting itself as the highest wisdom and the most radiant beauty... this knowledge, this feeling is at the center of true religiousness.