8.14
This rule can be stated in few words, but is applies to the whole art of horsemanship. He will receive the bit, for example, more willingly if something good happens to him as soon as he takes it. He will also leap over and jump out of anything, and perform all his actions duly if he can expect a rest as soon as he has done what is required of him.
9.1
So far we have described how to avoid being cheated in buying a colt or a horse, how to avoid spoiling him in usage and how to impart to a horse all the qualities required by a cavalryman for war. It is time perhaps to give directions, in case one has to deal with a horse that is too spirited or too sluggish, for the correct way of managing either.
9.2
First, then, it must be realised that spirit in a horse is precisely what anger is in a man. Therefore, just as you are least likely to make a man angry if you neither say nor do anything disagreable to him, so he who abstains from annoying a spirited horse is least likely to rouse his anger.
9.3
Accordingly, at the moment of mounting, the rider should take care to worry him as little as possible; and when he is mounted, he should let him stand still longer than is otherwise usual, and then direct him to go by the most gentle aids. Then let him begin at a very slow pace and increase the speed with the same gentle help, so that the horse will not be aware of the transition to a quicker motion.