千里搭长棚，没有不散的宴席
qiān​lǐ​dā​cháng​péng​méi​yǒu​bù​sàn​de​yàn​xí

all good things must come to an end

千里搭长棚，没有不散的宴席 千里搭長棚，沒有不散的宴席 qiān​lǐ​dā​cháng​péng​méi​yǒu​bù​sàn​de​yàn​xí
all good things must come to an end
Even if you build a thousand-league awning for it, every banquet must eventually end; used to mean that no matter how close people are, they must eventually part ways.