To be happy in this world, especially when youth is past, it is necessary to feel oneself not merely an isolated individual whose day will soon be over, but part of the stream of life flowing on from the first germ to the remote and unknown future.

Against my will, in the course of my travels, the belief that everything worth knowing was known at Cambridge gradually wore off. In this respect my travels were very useful to me.

Both in thought and in feeling, even though time be real, to realise the unimportance of time is the gate of wisdom.

It is only theory that makes men completely incautious.

Whether science—and indeed civilization in general—can long survive depends upon psychology, that is to say, it depends upon what human beings desire.

Unless a man has been taught what to do with success after getting it, the achievement of it must inevitably leave him a prey to boredom.

The twin conceptions of sin and vindictive punishment seem to be at the root of much that is most vigorous, both in religion and politics.

Civilized people cannot fully satisfy their sexual instinct without love.

We believe, first and foremost, what makes us feel that we are fine fellows.

Self-respect will keep a man from being abject when he is in the power of enemies, and will enable him to feel that he may be in the right when the world is against him.