再美好也经不住遗忘在悲伤也抵不住时光
[zài mĕi hăo yĕ jīng bù zhù yí wàng zài bēi shāng yĕ dĭ bù zhù shí guāng]
This translates to 'Even if something was once so perfect, it cannot withstand being forgotten by time nor resist the passing of time which brings sorrows as well,' suggesting both nostalgia and acceptance of inevitable change.