“Growl he would, from the moment the petting began till it ended. But it was a growl with a new note in it. A stranger could not hear this note, and to such a stranger the growling of White Fang was an exhibition of primordial savagery, nerve–racking and blood–curdling. But White Fang's throat had become harsh–fibred from the making of ferocious sounds through the many years since his first little rasp of anger in the lair of his cubhood, and he could not soften the sounds of that throat now to express the gentleness he felt.”

“He talked to White Fang as White Fang had never been talked to before. He talked softly and soothingly, with a gentleness that somehow, somewhere, touched White Fang. In spite of himself and all the pricking warnings of his instinct, White Fang began to have confidence in this god. He had a feeling of security that was belied by all his experience with men.”

“The clay of White Fang had been molded until he became what he was, morose and lonely, unloving and ferocious, the enemy of all his kind.”

“White Fang was glad to acknowledge his lordship, but it was lordship based upon superior intelligence and brute strength...There were deeps in his nature which had never been sounded. A kind word, a caressing touch of the hand, on the part of Gray Beaver, might have sounded these deeps; but Gray Beaver did not caress nor speak kind words. It was not his way.”

“His eyes were likewise greeted by White Fang, but about the latter there were no signs of shame nor guilt. He carried himself with pride, as though, forsooth, he had achieved a deed praiseworthy and meritorious. There was about him no consciousness of sin.”

“But nobody else ever romped with White Fang. He did not permit it. He stood on his dignity, and when they attempted it, his warning snarl and bristling mane were anything but playful. That he allowed the master these liberties was no reason that he should be a common dog, loving here and loving there, everybody's property for a romp and good time. He loved with single heart and refused to cheapen himself or his love.”

“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.”