...in his gambling, he had one besetting weakness -- faith in a system; and this made his damnation certain.

To be able to forget means sanity.

Man is man because he chanced to develop intelligence instead of instinct; otherwise he would to this day have remained among the anthropoid apes. He has turned away from nature, become unnatural, as it were, disliked the earth upon which he found himself, and changed the face of it somewhat to his liking.

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

He became quicker of movement than the other dogs, swifter of foot, craftier, deadlier, more lithe, more lean with ironlike muscle and sinew, more enduring, more cruel more ferocious, and more intelligent. He had to become all these things, else he would not have held his own nor survived the hostile environment in which he found himself.

Mercedes nursed a special grievance - the grievance of sex. She was pretty and soft, and had been chivalrously treated all her days. But the present treatment by her husband and brother was everything save chivalrous. It was her custom to be helpless. They complained. Upon which impeachment of what to her was her most essential sex pregorative, she made their lives unendurable.

Buck did not read the newspapers, or he would have known that trouble was brewing, not alone for himself, but for every tide-water dog, strong of muscle and with warm, long hair, from Puget Sound to San Diego.