It comes, of course, from the connate impulses of his nature.

For the other he requires a skillful and careful training.

If we find a dog who evinces no disposition to seek the society of man, but roams off into woods and solitudes alone, he is useless, and we attribute the fault to his own wolfish nature.

But if he will not fetch and carry at command, or bring home a basket in his mouth from market, the fault, if there be any fault, is in his master, in not having taken the proper time and pains to train him, or in not knowing how to do it.

He has an instinct leading him to attach himself to a human master, and to follow his master wherever he goes.