'When I was a youngster, all the progressive people were saying, "Why all this prudery? Let us treat sex just as we treat all our impulses." I was simple-minded enough to believe that they meant what they said. I have since discovered that they meant exactly the oposite. They meant that sex was to be treated as no other impulse has been treated by civilised people. All the others, we admit, have to be bridled. Absolute obedience to your instinct for self-preservation is what we call cowardice; to your acquisitive impulse, avarice. Even sleep must be resisted if you're a sentry. But every unkindness and breach of faith seems to be condoned provided that the object aimed at is "four bare legs in a bed"'
CS Lewis, "We have no 'right to happiness'" in God in the Dock, p.105.
