Darn the wheel of the world! Why must it continually turn over? Where is the reverse gear?

The first theft marked Buck as fit to survive in the hostile Northland environment. It marked his adaptability, his capacity to adjust himself to changing conditions, the lack of which would have meant swift and terrible death. It marked, further, the decay or going to pieces of his moral nature, a vain thing and a handicap in the ruthless struggle for existence.

In a saturated population life is always cheap.

It's better to stand by someone's side than by yourself

He felt strangely numb. As though from a great distance, he was aware that he was being beaten. The last sensations of pain left him. He no longer felt anything, though very faintly he could hear the impact of the club upon his body. But it was no longer his body, it seemed so far away.

Cruelty, as a fine art, has attained its perfect flower in the trained-animal world.

The effect of civilization is to impose human law upon environment until it becomes machine-like in its regularity. The objectionable is eliminated, the inevitable is foreseen. One is not even made wet by the rain nor cold by the frost; while death, instead of stalking about gruesome and accidental, becomes a prearranged pageant, moving along a well-oiled groove to the family vault, where the hinges are kept from rusting and the dust from the air is swept continually away.