Thus paganism, in its very nature, was expansive, self-developing, and, as Mr. Hume observed, tolerant; a new god was welcomed to the Pantheon as a new scientific discovery is welcomed by the Royal Society; and the various nations found no difficulty in interchanging their divinities--a new god either representing a new power not hitherto discovered, or one with which they were already familiar under a new name. With such a power of adaptation and enlargement, if there had been nothing more in it than this, such a system might have gone on accommodating itself to the change of times, and keeping pace with the growth of human character. Already in its later forms, as the unity of nature was more clearly observed, and the identity of nature throughout the known world, the separate powers were subordinating themselves to a single supreme king; and, as the poets had originally personified the elemental forces, the thinkers were reversing the earlier process, and discovering the law under the person. Happily or unhappily, however, what they could do for themselves they could not do for the multitude. Phoebus and Aphrodite had been made too human to be allegorised. Humanised, and yet, we may say, only half-humanised, retaining their purely physical nature, and without any proper moral attribute at all, these gods and goddesses remained to the many examples of sensuality made beautiful; and, as soon as right and wrong came to have a meaning, it was impossible to worship any more these idealised despisers of it. The human caprices and passions which served at first to deepen the illusion, justly revenged themselves; paganism became a lie, and perished.