All the soul of courtesy was in him, for equals and superiors.

After all, even in an inferior like the wild-dog, he did not consciously press an advantage very far--never extremely far.
In his stalking and rushing of the wild-dog, he had been more sound and fury than an overbearing bully.

But with a superior, with a two-legged white-god like Borckman, there was more a demand upon his control, restraint, and inhibition of primitive promptings.

He did not want to play with the mate a game that he ecstatically played with Skipper, because he had experienced no similar liking for the mate, two-legged white-god that he was.
And still Jerry was all gentleness.

He came back in a feeble imitation rush of the whole-hearted rush that he had learned to make on Skipper.