The most superior of scientific goals is to embrace a maximum of experiment with a minimum of hypotheses.

The field is the sole influence of the particle.

I am not only a pacifist but a militant pacifist. I am willing to fight for peace. Nothing will end war unless the people themselves refuse to go to war.

I speak to everyone in the same way, whether he is the garbage man or the president of the university.

Chess holds its master in its own bonds, shackling the mind and brain so that the inner freedom of the very strongest must suffer.

The more cruel the wrong that men commit against an individual or a people, the deeper their hatred and contempt for their victim.

However we select from nature a complex [of phenomena] using the criterion of simplicity, in no case will its theoretical treatment turn out to be forever appropriate (sufficient).... I do not doubt that the day will come when [general relativity], too, will have to yield to another one, for reasons which at present we do not yet surmise. I believe that this process of deepening theory has no limits.