C.S. Lewis on Sola Scriptura

It has been a long time since I've read C.S. Lewis' Mere Christianity, but I was flipping through it earlier this evening and found an amazing passage in the chapter on social morality that I had forgotten about. The way that Lewis explains the role that Scripture should play in this area as well as others shows a profound understanding of what it means to say that the Bible is authoritative. He does not treat Scripture as though it were some sort of a reference book to instruct in the details of every specific situation, but properly sees it as the lens through which we see everything else. He gives this wonderful description of how the two books, the book of Scripture and the book of nature, interact with one another:

Christianity has not, and does not profess to have, a detailed political programme for applying "Do as you would be done by" to a particular society at a particular moment. It could not have. It is meant for all men at all times and the particular programme which suited one place or time would not suit another. And, anyhow, that is not how Christianity works. When it tells you to feed the hungry it does not give you lessons in cookery. When it tells you to read the Scriptures it does not give you lessons in Hebrew and Greek, or even in English grammar. It was never intended to replace or supersede the ordinary human arts and sciences: it is rather a director which will set them all to the right jobs, and a source of energy which will give them all new life, if only they will put themselves at its disposal.