"If you can find the material," she said wryly, "someone else can find a use for it." Beyond all those official things to do, there were, after all, other ways people kept themselves occupied. Someone in the place had to have a use for something Mathias could do. They had no end of scientific geniuses, after all, who kept on prodding away at all kinds of things, like an academic free-for-all. "Why engineering?"