"Ah. The science I know is mostly alchemy, and even that I'm more of a student in." He chuckles and shakes his head. "Veth is the one who knows more about that."

He watches the movement of the other's hands and arms with interest. "That's true. It's not impossible, though. ... That was sign language, wasn't it? I don't know it myself, but I know of a few people who use one form or another."