a deed as tiny as hair
Mao fazhigong is a Chinese idiom.
It comes from the test form of seeking self written by Cao Zhi of the Three Kingdoms, Wei Dynasty: "stealing is not measured by oneself, and the purpose is to serve one's life used as an object; used to describe a small amount of credit
Chinese PinYin : máo fà zhī gōng
a deed as tiny as hair
rely on one 's ability and act on impulse. fù cái shǐ qì