安分守己

ānfèn-shǒujǐ

(1) [abide by the law and behave oneself; act proper to one's status; behave discreetly]∶安于命定的本分, 只做自己分内的事情

(2) [know one's place]∶为人规矩老实, 做事不敢越轨

还是安分守己做做工吧!--陆文夫《唐巧娣翻身》