The Analects of Confucius. Xian Wen": "One might say: 'How to repay evil with kindness?' The Master said: 'How to repay kindness with kindness? "Repay grievances directly, repay kindness with kindness".

Supplement: "Repay grievances with virtue" I don't know whether it comes from Chapter 63 or Chapter 79. The main point of disagreement is because of the sentence "Repay grievances with virtue" , can An be a good person? " has produced different opinions. And "pick up the bricks and fly them away" is the later generation's response to "or say: 'How about repaying evil with kindness? ’ Confucius said: “How to repay kindness? Repay grievance with straightness, repay virtuousness with kindness.” There is a new understanding of “repaying grievance with straightness”.