"But what," she felt like some kind of a heretic, "if the Demon exists only because the two equations look alike? Because of the metaphor?"
Nefastis smiled; impenetrable, calm, a believer. "He existed for Clerk Maxwell long before the days of the metaphor."
But had Clerk Maxwell been such a fanatic about his Demon's reality? She looked at the picture on the outside of the box. Clerk Maxwell was in profile and would not meet her eyes. The forehead was round and smooth, and there was a curious bump at the back of his head, covered by curling hair. His visible eye seemed mild and noncommittal, but Oedipa wondered what hangups, crises, spookings in the middle of the night might be developed from the shadowed subtleties of his mouth, hidden under a full beard.