The unlettered person has other refined skills and is often more watchful, shrewd, and freer in discussion than the literate person with a limited experience of literature, who believes that all the answers to life’s questions can be found in the pages of the Bible, say, or the Koran. And then there are the laziest and most presumptuous of people, those who can read but who don’t bother, who live in the smuggest ignorance and seem to me dangerous.