If you have it, it is for life. It is a disease for which there is no cure. You will go on riding even after they have to haul you on a comfortable wise old cob, with feet like inverted buckets and a back like a fireside chair... when I can't ride anymore, I shall still keep horses as long as I can hobble about with a bucket and a wheelbarrow. When I can't hobble, I shall roll my wheelchair out to the fence of the field where my horses graze, and watch them.