I'm not really able to think of any of those medieval authors who thought that way. I'm sure there are examples, but I can't think of any. It seems that, at lea

I'm not really able to think of any of those medieval authors who thought that way. I'm sure there are examples, but I can't think of any. It seems that, at least in practice, we've pretty much always felt we were the apex of morality and knowledge. That's, I would guess, why broad changes are the exception, slow, difficult, or violent. I guess I probably should have written something longer and with some caveats.