"I’m what C.S. Lewis would call a ʽMere Christianʼ, and all of my two books are very, very much meant to be from the point of view of what C.S. Lewis called ‘Mere Christianity’, meaning that I don’t touch upon anything at all where Protestants, Catholics, and Orthodox Christians differ, they express just the basics of the faith, from a basic, ecumenical Christian viewpoint. They only talk about the Christian faith that they have agreement on."