[86] And moreover, that most spirited of animals, the horse, is easily guided after he has been bridled; in order that he may not become frisky, and shake off the rein; and he hollows his back in an admirable manner to receive his rider and to afford him a good seat, and then bearing him aloft, he gallops at a rapid pace, being eager to arrive at and carry him to the place to which he is urging him. And the rider without any toil, but in the most perfect quiet, makes a rapid journey, by using the body and feet of another animal.