My scientific work is motivated by an irresistible longing to understand the secrets of nature and by no other feeling. My love for justice and striving to contribute towards the improvement of human conditions are quite independent from my scientific interests.

Morality is of the highest importance - but for us, not for God.

Balance in large measure is knowing the things that can be changed, putting them in proper perspective, and recognizing the things that will not change."

The number of natural hypothesis that can explain any given phenomena is infinite.

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

Non-comprehenders are often distressed. Not you, though-because with good humor you're blessed. After all, your thoughts went like this, I dare say: It was none but the Lord who made us that way.

The health of society thus depends quite as much on the independence of the individuals composing it as on their close political cohesion.