I stumbled onto Myron Magnet's fine 2003 essay of the above title. Magnet says that good writing is about higher and deeper truths than "knowledge," "information," or "data" can provide, and I agree of course.
One quote:
What’s wanted is wisdom: the ability to see into the heart of things. This is the kind of knowledge that Plato describes so poetically in that most literary of all philosophical passages, the allegory of the cave: the knowledge that sees through the world of appearances to the Truth, of which the appearances are but an emanation—a knowledge that requires a lifetime of reason and study to attain but that comes finally in a flash of intuition, because the Truth is in us, in an inner nature we can glimpse by introspection and intuition, as well as in the world. And this is the knowledge—a knowledge, one might say, that resides in our souls as well as in our minds—that great literature embodies.
He includes a smack-down of the one-dimensional pomo critics, but that's far from his main point.
And since Magnet mentions Cosi Fan Tutte so often in his piece, here's the truly ridiculous and lovely Act 1 Finale, in which the cheating suitors fake committing suicide to re-engage their girlfriends:
