"I thought you said the thing with John was that he was so reluctant to be in any way involved with anything's death that he usually refused to eat, since every eating entails a death. That's not anorexia."
"It is, sort of, if you think about it."
"And that he had a horizontal proof of the indisputability of the proposition that one should never kill, for whatever reason."
"A diagonal proof."
"He ... want it published, maybe?"
"I doubt he ever wrote it down, since that would involve paper, and so trees, et cetera."
"Quite a fellow. A certain nobility."
Rick and Lenore talking about her brother