Raven Darkholme: "Mutant and proud."
Professor Charles Xavier: What?
Raven Darkholme: Or is it the with pretty mutations, or invisible ones like yours? But if you're a freak, you better hide.
Professor Charles Xavier: You're being ridiculous. I don't mean to sound like an old fart.
Raven Darkholme: Which you are.
Professor Charles Xavier: Sometimes. But we've talked about this, Raven. A small slip up is one thing. A big one does not bear thinking about it.