I know who I was, I can tell you who I may have been, but I am, now, only in this line of words I write. I'm not sure of the nature of my existence, … - Ursula K. Le Guin

So maybe the difference isn't language. Maybe it's this: animals do neither good nor evil. They do as they must do. We may call what they do harmful or useful, but good and evil belong to us, who chose to choose what we do. The dragons are dangerous, yes. They can do harm, yes. But they're not evil. They're beneath our morality, if you will, like any animal. Or beyond it. They have nothing to do with it.
We must choose and choose again. The animals need only be and do. We're yoked, and they're free. So to be with an animal is to know a little freedom...

We're not outside the world... We are the world. We're its language. So we live and it lives. You see? If we don't say the words, what is their in our world?

"...You have knowledge, and I have skill, and between us we have..."
"We have the Ring of Erreth-Akbe."
"Yes, that. But I thought also of another thing between us. Call it trust... That is one of its names. It is a very great thing. Though each of us alone is weak, having that we are strong, stronger than the Powers of the Dark."