"He that has the strength, let him arise and withdraw into himself, foregoing all that is known by the eyes, turning away for ever from the material beauty that once made his joy. When he perceives those shapes of grace that show in body, let him not pursue: he must know them for copies, vestiges, shadows, and hasten away towards That they tell of. For if anyone follow what is like a beautiful shape playing over water—is there not a myth telling in symbol of such a dupe, how he sank into the depths of the current and was swept away to nothingness? So too, one that is held by material beauty and will not break free shall be precipitated, not in body but in Soul, down to the dark depths loathed of the Intellective-Being, where, blind even in the Lower-World, he shall have commerce only with shadows, there as here." — Plotinus, Volume 1, Ennead 1.6