Being born in a stable does not make one a horse.

[A] bad-tempered man will never make a good-tempered horse.

To use a horse to show that a horse is not a horse is not as good as using a non-horse to show that a horse is not a horse...

You cannot kickstart a dead horse

A man that don’t love a horse, there is something the matter with him.

Horses are far worse than men for treachery...

Ya know, Joey,’ Uncle Ed would say, ‘there’s no accountin’ for horses’ asses.

So it turns out that if you bang two halves of a horse together, it doesn't make the sound of a coconut.

A cavalryman's horse should be smarter than he is. But the horse must never be alowed to know this.

We cannot improve or restructure a horse and buggy into a spacecraft regardless of how much money and effort we put into it.

It is said that the best horses lose when they compete with slower ones and win against better rivals. Undercompensation from the absence of a stressor,inverse hormesis, absence of challenge, degrades the best of the best.

...you will find the worst horse is the most valuable one. In your very imperfections you will find the basis for your firm, way-seeking mind... But those who find great difficulties in practicing Zen will find more meaning in it. So I think that sometimes the best horse may be the worst horse, and the worst horse can be the best one.

Never look a gift horse in the mouth.

A cavalryman's horse should be smarter than he is. But the horse must never be allowed to know this.