The man without a moral code, like the animal, is free from moral problems. The man who has not learned to count is free from mathematical problems. A man asleep is free from all problems. Within the framework of general human ethics, problems will, of course, arise and will sometimes be solved wrongly. This possibility of error is simply the symptom that we are awake, not asleep, that we are men, not beasts or gods. If I were pressing on you a panacea, if I were recommending traditional ethics as a means to some end, I might be tempted to promise you the infallibility which I actually deny. But that, you see, is not my position. I send you back to your nurse and your father, to all the poets and sages and law givers, because, in a sense, I hold that you are already there whether you recognize it or not: that there is really no ethical alternative: that those who urge us to adopt new moralities are only offering us the mutilated or expurgated text of a book which we already possess in the original manuscript.
From Lewis’ “On Ethics” (56) quoted in The Passionate Intellect: Incarnational Humanism and the Future of University Education by Jens Zimmermann and Norman Klassen (181).