The excerpt represents the core issue or deciding factor on which you must meditate, and is drawn from On Horsemanship by Xenophon:|
his forequarters and bring up his hindquarters under him. Given these
points, moreover, the belly will appear as small as possible, a
portion of the body which if large is partly a disfigurement and
partly tends to make the horse less strong and capable of carrying
 Al. "more feeble at once and ponderous in his gait."
The quarters should be broad and fleshy in correspondence with the
sides and chest, and if they are also firm and solid throughout they
will be all the lighter for the racecourse, and will render the horse
in every way more fleet.
To come to the thighs (and buttocks): if the horse have these