It was the duty of wives to submit to husbands, not of husbands to submit to wives. . . men have stronger muscles than women.

Right conduct can never, except by some rare accident, be promoted by ignorance or hindered by knowledge.

One of the main causes of trouble in the world is dogmatic and fanatical belief in some doctrine for which there is no adequate evidence

Reason is a harmonising, controlling force rather than a creative one.

If you had the power to destroy the world, would you do so?

The teacher, like the artist, the philosopher, and the man of letters, can only perform his work adequately if he feels himself to be an individual directed by an inner creative impulse, not dominated and fettered by an outside authority.

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