無功不受祿

Simplified: 无功不受禄

wúgōngbùshòulù ㄨˊ ㄍㄨㄥ ㄅㄨˋ ㄕㄡˋ ㄌㄨˋ

    • Don't get a reward if it's not deserved. (idiom)

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Sources