“I can myself conceive of nothing else than the experienced.”

The cost of a thing is what I call life which has to be exchanged for it, immediately or in the long run.

There are persons who, when they cease to shock us, cease to interest us.

His mind is so open – so open that ideas simply pass through it.

Eclecticism. Every truth is so true that any truth must be false.

One said of suicide, As long as one has brains one should not blow them out. And another answered, But when one has ceased to have them, too often one cannot.

Few people would not be the worse for complete sincerity.

It is good to know what a man is, and also what the world takes him for. But you do not understand him until you have learnt how he understands himself.

We say that a girl with her doll anticipates the mother. It is more true, perhaps, that most mothers are still but children with playthings.

The secret of happiness is to admire without desiring. And that is not happiness.

The man who has ceased to fear has ceased to care.

Metaphysics is the finding of bad reasons for what we believe on instinct.

The man whose nature is such that by one path alone his chief desire will reach consummation will try to find it on that path, whatever it may be, and whatever the world thinks of it; and if he does not, he is contemptible.

Reason teaches us that what is good is good for something, and that what is good for nothing is not good at all.

Another occupation might have been better.

I will begin with the self-styled “Christian” party, who profess to base their morality on the New Testament. But whether it is really more Christian to follow or to ignore the teachings of the Gospels I shall not discuss.

The one self- knowledge worth having is to know one’s own mind.