可惜总有些故事还来不及
[kĕ xī zŏng yŏu xiē gù shì hái lái bù jí]
It is a sigh towards the fact there will always be stories left untold or unfinished before life moves on. It contains regrets for what's missed or couldn't reach completion but at the same time carries profound understanding about how incomplete endings are also an essence of life.