Because he had so many insane, excruciating things to get excited about. You've got to be hurt and upset; otherwise you can't think of the really good, penetrating, X-rayish phrases. But fathers and mothers!" He shook his head. "You can't expect me to keep a straight face about fathers and mothers. And who's going to get excited about a boy having a girl or not having her?" (The Savage winced; but Helmholtz, who was staring pensively at the floor, saw nothing.) "No." he concluded, with a sigh, "it won't do. We need some other kind of madness and violence. But what? What? Where can one find it?" He was silent; then, shaking his head, "I don't know," he said at last, "I don't know."