Sunt geminae Somni portae, quarum altera fertur cornea, qua veris facilis datur exitus umbris, altera candenti perfecta nitens elephanto, sed falsa ad caelum mittunt insomnia Manes.
Two gates of Sleep there are, whereof the one, they say, is horn and offers a ready exit to true shades, the other shining with sheen of polished ivory, but delusive dreams issue upward through it from the world below.