"Now I know some of you have already heard of me, but for the benefit of those who are unfamiliar, let me explain how I teach. Between today until the class right before finals, it is my intention to work into each of my lectures … one lie. Your job, as students, among other things, is to try and catch me in the Lie of the Day."

— [here] via [kottke]
Sounds like Reb Saunders in The Chosen, which came way before Neil Postman.
Luke's Commonplace Book