The proper function of man is to live, not to exist. I shall not waste my days in trying to prolong them. I shall use my time.

Men do not knowingly drink for the effect alcohol produces on the body. What they drink for is the brain-effect; and if it must come through the body, so much the worse for the body.

Our ape-like and arboreal ancestors entered upon the first of many short cuts. To crack a marrow-bone with a rock was the act which fathered the tool, and between the cracking of a marrow-bone and the riding down town in an automobile lies only a difference of degree.

Desire is a pain which seeks easement through possession.

You can't wait for inspiration. You have to go after it with a club.

But under it all they were men, penetrating the land of desolation and mockery and silence, puny adventurers bent on colossal adventure, pitting themselves against the might of a world as remote and alien and pulseless as the abysses of space.

It's better to stand by someone's side than by yourself