“To be able to forget means sanity.”

“There is an ecstasy that marks the summit of life, and beyond which life cannot rise. And such is the paradox of living, this ecstasy comes when one is most alive, and it comes as a complete forgetfulness that one is alive. This ecstasy, this forgetfulness of living, comes to the artist, caught up and out of himself in a sheet of flame; it comes to the soldier, war-mad in a stricken field and refusing quarter; and it came to Buck, leading the pack, sounding the old wolf-cry, straining after the food that was alive and that fled swiftly before him through the moonlight.”

“Bog-lights, vapors of mysticism, psychic Gnosticisms, veils and tissues of words, gibbering subjectivisms, gropings and maunderings, ontological fantasies, pan-psychic hallucinations—this is the stuff, the phantasms of hope, that fills your book shelves.Come. Your glass is empty. Fill and forget.”

“The hand descended. Nearer and nearer it came. It touched the ends of his upstanding hair. He shrank down under it. It followed down after him, pressing more closely against him. Shrinking, almost shivering. He still managed to hold himself together. It was a torment, this hand that touched him and violated his instinct. He could not forget in a day all the evil that had been wrought him at the hands of men.”

“The trouble with him was that he was without imagination. He was quick and alert in the things of life, but only in the things, and not in the significances. Fifty degrees below zero meant eighty-odd degrees of frost. Such fact impressed him as being cold and uncomfortable, and that was all. It did not lead him to meditate upon his frailty as a creature of temperature, and upon man's frailty in general, able only to live within certain narrow limits of heat and cold; and from there on it did not lead him to the conjectural field of immortality and man's place in the universe.”

“The pitch to which he was aroused was tremendous. All the fighting blood of his breed was up in him and surging through him. This was living., though he did not know it. He was realizing his own meaning in the world; he was doing that for which he was made.... He was justifying his existence, than which life can do no greater; for life achieves its summit when it does to the uttermost that which it was equipped to do.”

“[Speaking to a group of wealthy New Yorkers]A million years ago, the cave man, without tools, with small brain, and with nothing but the strength of his body, managed to feed his wife and children, so that through him the race survived. You on the other hand, armed with all the modern means of production, multiplying the productive capacity of the cave man a million times — you are incompetents and muddlers, you are unable to secure to millions even the paltry amount of bread that would sustain their physical life. You have mismanaged the world, and it shall be taken from you. ”