《晏子春秋·杂下之十》:“婴闻之,橘生淮南则为橘,生于淮北则为枳,叶徒相似,其实味不同。所以然者何?水土异也。”故事讲的是春秋战国时,齐国使者晏婴出使楚国,楚王欲羞辱晏婴,在招待他时,命人押解一犯人上殿。楚王问:“捆着的是何人?犯的是何罪?”大臣答:“齐国人,犯的偷盗罪 “Yan Zi Chun Qiu miscellaneous under the ten”: “Baby smell of oranges Huainan is orange, was born in Huaibei is trifoliate orange, leaves similar, in fact, different taste. So what is the difference between water and soil.” The story is about Spring and Autumn Period, Qi angels ambassador Yan Chu Chu, Chu want to insult Yan Ying, hospitality him, the life escort a prisoner on the hall. Chu asked: “Who is tied? What crime is committed?” Minister A: "Qi people, guilty of theft