花非花，雾非雾。

　　夜半来，天明去。

　    来如春梦不多时，

　　去似朝云无觅处。----白居易

　　Call it flower - 'tis not a flower;

　　Call it foggy mist - 'tis none such either.

　　It comes in the dead of the night

　　And takes flight the moment dawn alights;

　　It stays no longer than a dream in spring,

　　Departs like the fleeting early morning clouds -

　　And is seen no more.