And Plato's notable sentence in the third book of "Polity":--"Tell them they have divine gold and silver in their souls for ever; that they need no money stamped of men--neither may they otherwise than impiously mingle the gathering of the divine with the mortal treasure, for through that which the law of the multitude has coined, endless crimes have been done and suffered; but in theirs is neither pollution nor sorrow." At the entrance of this place of punishment an evil spirit is seen by Dante, quite other than the "Gran Nemico." The great enemy is obeyed knowingly and willingly; but this spirit--feminine--and called a Siren--is the "Deceitfulness of riches," [Greek: apate ploutou] of the gospels, winning obedience by guile. This is the Idol of Riches, made doubly phantasmal by Dante's seeing her in a dream. She is lovely to look upon, and enchants by her sweet singing, but her womb is loathsome. Now, Dante does not call her one of the Sirens carelessly, any more than he speaks of Charybdis carelessly, and though he had only got at the meaning of the Homeric fable through Virgil's obscure tradition of it, the clue he has given us is quite enough. Bacon's interpretation, "the Sirens, or pleasures," which has become universal since his time, is opposed alike to Plato's meaning and Homer's. The Sirens are not pleasures, but Desires: in the Odyssey they are the phantoms of vain desire; but in Plato's vision of Destiny, phantoms of constant Desire; singing each a different note on the circles of the distaff of Necessity, but forming one harmony, to which the three great Fates put words. Dante, however, adopted the Homeric conception of them, which was that they were demons of the Imagination, not carnal (desire of the eyes; not lust of the flesh); therefore said to be daughters of the Muses. Yet not of the muses, heavenly or historical, but of the muse of pleasure; and they are at first winged, because even vain hope excites and helps when first formed; but afterwards, contending for the possession of the imagination with the muses themselves, they are deprived of their wings, and thus we are to distinguish the Siren power from the Power of Circe, who is no daughter of the muses, but of the strong elements, Sun and Sea; her power is that of frank and full vital pleasure, which, if governed and watched, nourishes men; but, unwatched, and having no "moly," bitterness or delay mixed with it, turns men into beasts, but does not slay them, leaves them, on the contrary, power of revival. She is herself indeed an Enchantress;--pure Animal life; transforming--or