follow precedents
Chinese idiom, Pinyin is Shu à iy ó Uji à Z é, which means to follow the old rules completely. It comes from the annals of the Three Kingdoms, the book of Wei, the biography of King Chen Xiao in Rencheng.
The rule of the past (Shu à iy ó Uji à Z é)
[explanation]: rate: compliance; old rules: old rules and regulations. Follow the old rules. It is the same as "let's go from the old chapter.".
[source]: "history of the Three Kingdoms · Wei Shu · biography of Chen Xiao king in Rencheng city": "since the ten thousand nations have been transformed, the rule of frankness has been changed."
[example]: Gaozu Chigu, after considering the former king, chose his order and canon, and set up the state model of Zhangguo. The book of Wei
follow precedents
turn all the previous labour to nothing - qián gōng jìn fèi
sit idle and eat , and in time one 's whole fortune will be used up - zuò chī shān kōng