Indeed we ought not to apply to it even such words as 'itself' or 'that', 'each', 'alone', or 'this', or any other of the many words of this kind; for these go the round and are applied to all things alike, being other than the things to which they are added, whereas if it were possible to express the element itself and it had its own proprietary account, it would have to be expressed without any other thing.