[He sighs. This is actually more familiar than he'd care to admit. When certain villains had found out other worlds existed, they used that knowledge to hurt people. That was why Master Yensid had made that rule in the first place, that people shouldn't know other worlds exist.

And yet...]

I don't like bein' the one ta tell ya this, but there are always gunna be some bad people bent on destroyin' each other. Just because they can't take the books, doesn't mean they can't take out what they learned. But there's always the good folks who will use that same knowledge, and understand what the enemy's gunna do, in order ta stop it.

I doubt I'm gunna change yer mind there, but humans can be both bad and good, just the same as any owl can be bad or good, or any mouse can be bad or good. I just don't like the idea of distrustin' em all.