还有一种爱叫放手还有一种爱叫坚持
[hái yŏu yī zhŏng ài jiào fàng shŏu hái yŏu yī zhŏng ài jiào jiān chí]
Expresses two aspects of love: one is learning to let go when love is no longer beneficial for either side; the other is standing by the loved one firmly under adversity.