柏拉圖老爺爺說：從前的人類是雌雄同體的，正如有的朋友懷疑仔仔小姐和我一樣。
這些雌雄同體的人冒犯了神，神決定把人劈成兩半。從此以後，人類的本能之一也是
使命之一就是尋找被分開的另外一半，並與之融合，再不分離。

Toward the Undivided
According to Plato, humans descended from a primordial race "whose essence is
now extinct" - a race of hermaphrodites. The race was powerful, yet arrogant,
and when they rebelled against the Gods, they were in turn cursed and split in
two. According to Plato, "From such an ancient time love has goaded human beings,
one toward another; it is inborn, and seeks to renew our ancient nature in an
endeavor to unite in one single being two distinct beings, and therefore, to
restore human nature to good health." He added that , "... this was indeed our
primitive nature when we constituted one unit which was still whole; it is really
the burning longing for this unity which bears the name of love." This is echoed
in Genesis 2:24, which says, "For this reason a man will leave his father and
mother to be united with his wife, and they will become one flesh (emphasis added.)"