ㄅㄨˋㄑㄧㄡˊㄧㄡˇㄍㄨㄥbùqiú‑yǒugōngㄉㄢˋㄑㄧㄡˊˊㄍㄨㄛˋdànqiú‑wúguò

不求有功,但求无过
  1. 不要成就功績只要過失做事採取保守謹慎態度 投資躁進不求有功,但求無過寧可一點以免得不償失」。

special achievement not required, just no hyperactive blunders (idiom)​; not hoping to acquire merit, just avoiding mistakes, Take it easy and keep your nose clean.