《战国策·燕三·燕太子丹质于秦亡归》
太子丹说： 樊将军因为走投无路来投奔我，我又怎么忍心为了自己的私事而伤害忠厚老实的人的心，还望您另想个办法。 
太子曰： 樊将军以穷困来归丹，丹不忍以己之私，而伤长者之意，愿足下更虑之。 
Prince Dan said: General Fan came to me because he had nowhere to go. How can I bear to harm an innocent man for my own selfish purposes? I hope you will find another way.