好了伤疤忘了疼淡了忧伤忘了愁
[hăo le shāng bā wàng le téng dàn le yōu shāng wàng le chóu]
'Once Scars Heal, Pain Is Forgotten; Grief Lessened, Worries Are Forgotten' encapsulates human nature's tendency to heal both physically and emotionally, emphasizing moving on and finding peace after hardship.