"It excites me that no matter how much machinery replaces the horse, the work it can do is still measured in horsepower.....even in this space age. And although a riding horse often weighs half a ton, and a big drafter a full ton, either can be led about by a piece of string if he has been wisely trained. This to me is a constant source of wonder, and challenge."
- Marguerite Henry
(Thanks to NoBit Bridles for a ponder-inducing quote from one of my favourite childhood authors.)