"Christianity does appeal to a solid truth outside itself; to something which is in that sense external as well as eternal. It does declare that things are really there; or in other words that things are really things--In this Christianity is at one with common sense; but all religious history shows that this common sense perishes except where there is Christianity to preserve it. It cannot otherwise exist, or at least endure, because mere thought does not remain sane. In a sense it becomes too simple to be sane. The temptation of the philosophers is simplicity rather than subtlety. They are always attracted by insane simplifications, as men poised above abysses are fascinated by death and nothingness and the empty air. It needed another kind of philosopher to stand poised upon the pinnacle of the Temple and keep his balance without casting himself down. One of these obvious, these too obvious explanations is that everything is a dream and a delusion and there is nothing outside the ego. Another is that all things recur; another, which is said to be Buddhist and is certainly Oriental, is the idea that what is the matter with us is our creation, in the sense of our coloured differentiation and personality, and that nothing will be well till we are again melted into one unity. By this theory, in short, the Creation was the Fall. It is important historically because it was stored up in the dark heart of Asia and went forth at various times in various forms over the dim borders of Europe."