"Don't know how to ride!" Sam repeats in astonishment. "But what do they use then, back where you came from? I can't see how you'd ever get anywhere without horses - not unless you walked everywhere, and I can tell you, that stops being fun right quick! Anyhow you should learn here, soon as you can, if you don't mind me saying so; I'm sure it'll make things a lot easier sooner or later."