By an application of the theory of relativity to the taste of readers, today in Germany I am called a German man of science, and in England I am represented as a Swiss Jew. If I come to be represented as a bête noire, the descriptions will be reversed, and I shall become a Swiss Jew for the Germans and a German man of science for the English!

Nothing is more destructive of respect for the government and the law of the land than passing laws which cannot be enforced.

As far as I'm concerned, I prefer silent vice to ostentatious virtue.

Keep fighting until the last buzzer sounds.

The word 'God' is for me nothing more than the expression and product of human weaknesses, and religious scripture a collection of honourable, but still primitive legends which are nevertheless pretty childish. No interpretation, no matter how subtle, can (for me) change this.

... on principle, it is quite wrong to try founding a theory on observable magnitudes alone. In reality the very opposite happens. It is the theory which decides what we can observe.

It is the supreme art of the teacher to awaken joy in creative expression and knowledge.