If we knew what it was we were doing, it would not be called research, would it?

If you are out to describe the truth, leave elegance to the tailor.

There is no vaccine against stupidity.

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.

To stimulate creativity one must develop childlike inclination for play and the childlike desire for recognition.

Every serious scientific worker is painfully conscious of this involuntary relegation to an ever-narrowing sphere of knowledge, which threatens to deprive the investigator of his broad horizon and degrades him to the level of a mechanic.

I have made no secret, either privately or publicly, of any sense of outrage over officially enforced military and war service. I regard it as a duty of conscience to fight against such barbarous enslavement of the individual with every means available.