" Since the time I had ridden Vodalus’s charger out of Saltus, I had supposed in my innocence that all mounts might be divided into two sorts: the highbred and swift, and the cold-blooded and slow. The better, I thought, ran with the graceful ease, almost, of a coursing cat; the worse moved so tardily that it hardly mattered how they did it. It used to be a maxim of one of Thecla’s tutors that all two-valued systems are false, and I discovered on that ride a new respect for him. My benefactor’s mount belonged to that third class (which I have since discovered is fairly extensive) comprising those animals that outrace the birds but seem to run with legs of iron upon a road of stone. Men have numberless advantages over women and for that "

― Gene Wolfe , Sword & Citadel