Every one is a genius, more or less. No one is so physically sound that no part of him will be even a little unsound, and no one is so diseased but that some part of him will be healthy — so no man is so mentally and morally sound, but that he will be in part both mad and wicked; and no man is so mad and wicked but he will be sensible and honourable in part. In like manner there is no genius who is not also a fool, and no fool who is not also a genius.