Some years ago I was lecturing in Santa Barbara and was introduced to a boy who had been on drugs. He had a good-looking sensitive face, long curly hair, sandals on his feet, and was wearing blue jeans. He came to hear my lecture and said, “This is brand-new; I’ve never heard anything like this.” So he was brought along again the next afternoon, and I greeted him. He looked me in the eyes and said, “Sir, that was a beautiful greeting. Why did you greet me like that?” I said, “Because I know who you are — I know you are made in the image of God.” We then had a tremendous conversation. We cannot deal with people like human beings, we cannot deal with them on the high level of true humanity, unless we really know their origin — who they are. God tells man who he is. God tells us that He created man in His image. So man is something wonderful.
Quoted from Escape from Reason in Schaeffer, F. A. (1982). The complete works of Francis A. Schaeffer: A Christian worldview. Westchester, Ill: Crossway Books, Vol. 1, p. 219.