But Thou, O my God, hadst already taught me by wonderful and secret ways, and therefore I believe that Thou taughtest me, because it is truth, nor is there besides Thee any teacher of truth, where or whencesoever it may shine upon us. Of Thyself therefore had I now learned, that neither ought any thing to seem to be spoken truly, because eloquently; nor therefore falsely, because the utterance of the lips is inharmonious; nor, again, therefore true, because rudely delivered; nor therefore false, because the language is rich; but that wisdom and folly are as wholesome and unwholesome food; and adorned or unadorned phrases as courtly or country vessels; either kind of meats may be served up in either kind of dishes.
— St. Augustine, Confessions, Book V., Chapter vi.