有仇不報非君子，有冤不伸枉為人 [－－－报－－－－－－－－－为－]

Jyutping
Pinyin yǒu chóu bù bào fēi jūn zǐ , yǒu yuān bù shēn wǎng wéi rén

Definitions (CC-CEDICT)
  1. one who doesn't avenge an injustice is not a gentleman, one who doesn't redress a wrong is not a man (idiom)