At one time the Horse had the plain entirely to himself.Then a Stag intruded into his place and shared his pasture.
The Horse, desiring to revenge himself on the stranger, asked a man if he were willing to help him in punishing the Stag.
The man replied that if the Horse would receive a bit in his mouth and agree to carry him, he would contrive effective weapons against the Stag
The Horse accepted and allowed the man to
mount him. From that hour he found that instead
of obtaining revenge on the Stag, he had
enslaved himself to the service of man.