For the pride of trace and trail was his, and sick unto death, he could not bear that another dog should do his work.

Age is never so old as youth would measure it.

Life is so short. I would rather sing one song than interpret the thousand.

Socialism, when the last word is said, is merely a new economic and political system whereby more men can get food to eat.

It is good that man should accept at face value the cheats of sense and snares of flesh, and through the fogs of sentiency pursue the lures and lies of passion.

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

There is an ecstasy that marks the summit of life, and beyond which life cannot rise. And such is the paradox of living, this ecstasy comes when one is most alive, and it comes as a complete forgetfulness that one is alive. This ecstasy, this forgetfulness of living, comes to the artist, caught up and out of himself in a sheet of flame; it comes to the soldier, war-mad in a stricken field and refusing quarter; and it came to Buck, leading the pack, sounding the old wolf-cry, straining after the food that was alive and that fled swiftly before him through the moonlight.