All criticism tends too much to become criticism of criticism; and the reason is very evident. It is that criticism of creation is so very staggering a thing. We see this in the difficulty of criticizing any artistic creation. We see it again in the difficulty of criticizing that creation which is spelt with a capital C. The pessimists who attack the Universe are always under this disadvantage. They have an exhilarating consciousness that they could make the sun and moon better; but they also have the depressing consciousness that they could not make the sun and moon at all. A man looking at a hippopotamus may sometimes be tempted to regard a hippopotamus as an enormous mistake; but he is also bound to confess that a fortunate inferiority prevents him personally from making such mistakes. It is neither a blasphemy nor an exaggeration to say that we feel something of the same difficulty in judging of the very creative element in human literature.
G. K. Chesterton, Charles Dickens, Chapter X.