Some men spend a lifetime in an attempt to comprehend the complexities of women. Others pre-occupy themselves with somewhat simpler tasks, such as understanding the theory of relativity!

The Universe is difficult to comprehend because it is obvious.

My scientific work is motivated by an irresistible longing to understand the secrets of nature not by other feelings.

I believe in standardizing automobiles, not human beings.

The most evident difference springs from the important part which is played in man by a relatively strong power of imagination and by the capacity to think, aided as it is by language and other symbolically devices.

In matters of trust and justice there can be no distinction between big problems and small, for the general principles which determine the conduct of men are indivisible. Whoever is careless with the truth in small matters cannot be trusted in important affairs.

To take those fools in clerical garb seriously is to show them too much honor.