不要等到失去才知道珍惜不要等到痛心才知道哭泣
[bù yào dĕng dào shī qù cái zhī dào zhēn xī bù yào dĕng dào tòng xīn cái zhī dào kū qì]
'Don't Only Treasure Something When It's Gone; Don't Wait Till Your Heart Hurts Before You Cry' serves as a reflection or lesson learned from regretting actions too late, emphasizing immediacy in expressing one’s true feelings.