Deep as the sea,
not half so as yearning.
For the sea has ends,
but yearning is boundless.
人道海水深，不抵相思半。
海水尚有涯，相思渺无畔。
——李治
Blamed for not being even
as faithful as the tide,
Yearning for each other is
even deeper than as the sea.
相恨不知潮有信，
相思始觉海非深。
——白居易
Endless yearning,
without meeting,
Nothing to achieve at this time
of the evening.
相思相见知何日，
此时此夜难为情。
——李白
