Unhappy business men, I am convinced, would increase their happiness more by walking six miles every day than by any conceivable change of philosophy.

I do not believe that I am now dreaming, but I cannot prove that I am not.

Of all forms of caution, caution in love is perhaps the most fatal to true happiness.

There was, I think, never any reason to believe in any innate superiority of the male, except his superior muscle.

Machines are worshipped because they are beautiful and valued because they confer power; they are hated because they are hideous and loathed because they impose slavery.

The Axiom of Choice is necessary to select a set from an infinite number of socks, but not an infinite number of shoes.

The whole conception of a God is a conception derived from the ancient oriental despotisms. It is a conception quite unworthy of free men. We ought to stand up and look the world frankly in the face. We ought to make the best we can of the world, and if it is not so good as we wish, after all it will still be better than what these others have made of it in all these ages.