When we have told how things behave when they are electrified, and under what circumstances they are electrified, we have told all there is to know

As soon as it is held that any belief, no matter what, is important for some other reason than that it is true, a whole host of evils is ready to spring up.

I cannot escape from the conclusion that the great ages of progress have depended upon a small number of individuals of transcendent ability.

The more things a man is interested in, the more opportunities of happiness he has and the less he is at the mercy of fate, since if he loses one thing he can fall back upon another.

Be scrupulously truthful, even if the truth is inconvenient, for it is more inconvenient when you try to conceal it.

The essence of life is doing things for their own sakes.

The Eugenic Society . . . is perpetually bewailing the fact that wage-earners breed faster than middle-class people.