The idea of a personal God is an anthropological concept which I am unable to take seriously.

The stupid are invincible.

It is better to believe than to disbelieve; in doing you bring everything to the realm of possibility.

The importance of a problem should not be judged by the number of pages devoted to it.

America is today the hope of all honorable men who respect the rights of their fellow men and who believe in the principle of freedom and justice.

If you took half of something and continued to take half of that half and so on, you would never reach an end.

I am of the opinion that all the finer speculations in the realm of science spring from a deep religious feeling, and that without such feeling they would not be fruitful.