To mix science up with philosophy is only to produce a philosophy that has lost all its ideal value and a science that has lost all its practical value. It is for my private physician to tell me whether this or that food will kill me. It is for my private philosopher to tell me whether I ought to be killed.

Comforts that were rare among our forefathers are now multiplied in factories and handed out wholesale; and indeed, nobody nowadays, so long as he is content to go without air, space, quiet, decency and good manners, need be without anything whatever that he wants; or at least a reasonably cheap imitation of it.

Plato was right, but not quite right.

Poets do not go mad; but chess-players do. Mathematicians go mad, and cashiers; but creative artists very seldom. I am not, as will be seen, in any sense attacking logic: I only say that this danger does lie in logic, not in imagination.

To be clever enough to get all that money, one must be stupid enough to want it.

[Paradox is] truth standing on its head to gain attention.

Each generation is converted by the saint who contradicts it most.