The power of thought, the vast regions it can master.

For some reason which I have failed to understand, many people like the system [scientific totalitarianism] when it is Russian but disliked the very same system when it was German. I am compelled to think that this is due to the power of labels; these people like whatever is labelled ‘Left’ without examining whether the label has any justification.

The more we realize our minuteness and our impotence in the face of cosmic forces, the more amazing becomes what human beings have achieved.

The teaching of Christ, as it appears in the Gospels, has had extraordinarily little to do with the ethics of Christians.

If I were a medical man, I should prescribe a holiday to any patient who considered his work important.

Ants and savages put strangers to death.

Man can be stimulated by hope or driven by fear, but the hope and the fear must be vivid and immediate if they are to be effective without producing weariness.