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.

It was the masterful and incommunicable wisdom of eternity laughing at the futility of life and the effort of life. It was the Wild, the savage, frozen-hearted Northland Wild. (Ch.1)

White Fang knew the law well: to oppress the weak and obey the strong.

Strength is an empty shell.

There is such a thing as anaesthesia of pain, engendered by pain too exquisite to be borne.

And at the instant he knew, he ceased to know.

My life shall be free and broad and great, and I will not be the slave to the sense delights which chained my ancient ancestry. I reject the heritage. I break the entail. And who are you to say I am unwise?