These are my faves:
“If one induces the horse to assume that carriage which it would adopt of
its own accord when displaying its beauty, then, one directs the horse to
appear joyous and magnificent, proud and remarkable for having been
ridden.”
–Xenophon
“In buying a horse or taking a wife, shut your eyes tight and commend
yourself to God.”
–Tuscan Proverb
Riding a horse is not a gentle hobby, to be picked up and laid down like a game of solitaire. It is a grand passion. It seizes a person whole and, once it has done so, he will have to accept that his life will be radically changed.
–Ralph Waldo Emerson
There is no secret so close as that between a rider and his horse. ~Robert Smith Surtees
A lovely horse is always an experience… It is an emotional experience of the kind that is spoiled by words. ~Beryl Markham