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.

Out of this pack-persecution he learned two important things: how to take care of himself in a mass-fight against him; and how, on a single dog, to inflict the greatest amount of damage in the briefest space of time.

He had learned well the law of club and fang, and he never forewent an advantage or drew back from a foe he had started on the way to Death. He had lessoned from Spitz, and from the chief fighting dogs of the police and mail, and knew there was no middle course. He must master or be mastered; while to show mercy was a weakness. mercy did not exist in the primordial life. It was misunderstood for fear, and such misunderstandings made for death. Kill or be killed, eat or be eaten, was the law; and this mandate, down out of the depths of Time, he obeyed.

I am a hopeless materialist. I see the soul as nothing else than the sim of activities of the organism plus personal habits - plus inherited habits, memories, experiences, of the organism. I believe that when I am dead, I am dead. I believe that with my death I am just as much obliterated as the last mosquito you and I squashed.

Mental or spiritual health, which is rationality, makes for progress, and the future demands greater and greater mental or spiritual health, greater and greater rationality. The brain must dominate and direct both the individual and society in the time to come, not the belly and the heart.

They were firemakers! They were gods! [humans]

As for me, you wonder why I am a socialist. I'll tell you. It is because socialism is inevitable; because the present rotten and irrational system cannot endure; because the day is past for your man on horseback. The slaves won't stand for it. They are too many, and willy-nilly they'll drag down the would-be equestrian before he gets astride. You can't get away from them, and you'll have to swallow the whole slave-morality. It's not a nice mess, I'll allow. But it's been a-brewing and swallow it you must.