《孔子家语·曲礼子夏问》
不论在集市或官府，遇见他就和他决斗，兵器常带在身，不必返家去取。 
遇于朝市，不返兵而斗。 
Fight him whenever you meet him in the market or government office, and always carry your weapon with you, so you don't have to go home and get it.