"What helped most of all was the utter joy Cornut took in it all. It was, after all, his life. As he led the class, he felt again the wonder he himself had felt, sitting in a class like this one. He hardly heard the buzz from the class as he put his pointer down to gesture, and blindly picked it up again, still talking. Teaching mathematics was a kind of hypnosis for him, an intense, gut-wrenching absorption that had gripped him from the time of his first math class."

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