“He wastes his time over his writing, trying to accomplish what geniuses and rare men with college educations sometimes accomplish.”

“He was sounding the deeps of his nature, and of the parts of his nature that were deeper than he, going back into the womb of Time.”

“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.”

“Man rarely places a proper valuation upon his womankind, at least not until deprived of them.”

“Denied the outlet, through play, of his energies, he recoiled upon himself and developed his mental processes. He became cunning; he had idle time in which to devote himself to thoughts of trickery.”

“Sometimes he pursued the call into the forest, looking for it as though it were a tangible thing, barking softly or defiantly... Irresistible impulses seized him. he would be lying in camp, dozing lazily in the heat of the day, when suddenly his head would lift and his ears cock up, intent and listening, and he would spring on his feet and dash away, and on and on, for hours, though the forest aisles.”

“This man had saved his life, which was something; but, further, he was the ideal master. Other men saw to the welfare of their dogs from a sense of duty and business expediency; he saw to the welfare of his as if they were his own children, because he could not help it. And he saw further. He never forgot a kindly greeting or a cheering word, and to sit down for a long talk with them ("gas" he called it) was as much his delight as theirs. He had a way of taking Buck's head roughly between his hands, and resting his own head upon Buck's, of shaking him back and forth, the while calling him ill names that to Buck were love names. Buck knew no greater joy than that rough embrace and the sound of murmured oaths, and at each jerk back and forth it seemed that his heart would be shaken out of his body so great was its ecstasy. And when, released, he sprang to his feet, his mouth laughing, his eyes eloquent, his throat vibrant with unuttered sound, and in that fashion remained without movement, John Thornton would reverently exclaim, "God! you can all but speak!"Buck had a trick of love expression that was akin to hurt. He would often seize Thornton's hand in his mouth and close so fiercely that the flesh bore the impress of his teeth for some time afterward. And as Buck understood the oaths to be love words, so the man understood this feigned bite for a caress.”