What a person thinks on his own without being stimulated by the thoughts and experiences of the other people is even in the best case rather paltry and monotonous.

Don't do anything that goes against your conscience, even if your country says so.

I assert that the cosmic religious experience is the strongest and the noblest driving force behind scientific research.

External conditions can, to a certain extent, reduce, but never cancel individual repsonsibility.

Education is what remains after one has forgotten what one has learned in school.

I have reached the conviction that the abolition of the death penalty is desirable. Reasons: 1) Irreparability in the event of an error of justice, 2) Detrimental moral influence of the execution procedure on those who, whether directly or indirectly, have to do with the procedure.

Try not to become a man of success, but a man of value. Look around at how people want to get more out of life than they put in. A man of value will give more than he receives. Be creative, but make sure that what you create is not a curse for mankind.