The true professor of English would be a sort of inspired person, a little silly, fond of reciting and reading aloud, unconscious of time and place, filled with intense admiration and terrific denunciations, admired and pitied by his students. Such a man with his childish conceit, his tattered wits, his flushed cheeks, and his transparent sincerity is the inspiration of the classroom, — he is the spirit of literature itself. Can a man like that examine ? Of course not. He lets them all through. But even the least gifted has caught something of our inspiration.
Stephen Leacock The Pursuit of Knowledge: A Discussion of Freedom and Compulsion in Education