tiān xià méi yǒu bù sàn de yán xí
天下没有不散的筵席

Meaning：The charecter”天下”means all China,“没有”means no，“不散的”means never-ending ,“筵席”means feast.The meaning behind it is all good things must come to an end.

For example：
天下没有不散的筵席,纵使多么地恋恋不舍也无奈.
There is no never-ending feast, even you all feel reluctant to part from each other.

人无千日好，花无百日红，天下没有不散的筵席
No morning sun lasts a whole day, all good things must come to an end.