“He most honors my style,” Whitman wrote in Song of Myself, “who learns under it to destroy the teacher.” The best thing about teaching is not merely the company of young minds, but the opportunity to be instructed by them. In my class at the Ohio State University on The Great Gatsby and the art of criticism, I have repeatedly (and, I’m afraid, rather tiresomely) denounced the the commonplace interpretation, advanced by nearly every English teacher across the dark fields of this rep...