C.S. Lewis

I am trying here to prevent anyone saying the really foolish thing that people often say about Him: 'I'm ready to accept Jesus as a great moral teacher, but I don't accept his claim to be God.' That is the one thing we must not say.  A man who was merely a man and said the sort of things Jesus said would not be a great moral teacher.  He would either be a lunatic - on the level with the man who says he is a poached egg - or else he would be the Devil of Hell.  You must make your choice.  Either this man was, and is, the son of God: or else a madman or something worse.  You can shut Him up for a fool, you can spit at Him and kill him as a demon; or you can fall at His feet and call Him Lord and God.  But let us not come with any patronizing nonsense about His being a great human teacher.  He did not leave that open to us.  He did not intend to.

C.S. Lewis, Mere Christianity, New York: Macmillan Publishing Co., 1952, pp. 40-41