Orange in the south and orange in the north, from Yan Zi's Spring and Autumn Miscellanies: "Those born in Huainan are oranges, and those born in Huaibei are oranges. Their leaves are similar to those of their disciples, but their tastes are actually different. What's that? The soil and water are different. " Citrus in Huainan, transplanted to the north of Huaihe River, became bitter citrus reticulata. Metaphor means that the same species varies due to different environmental conditions.
Extended data:
The origin of south orange and north orange:
Yan Zi told the King of Chu about this, saying, "Yan Ying, a poet of the State of Qi, came today, and I want to humiliate him. Why? " The left and right said, "For the sake of coming, please tie up a man and walk past the king. The king said, "What is it?" Right:' Qi people are also.' The king said, "Why sit down?" Say, "Sit down and steal." "The king of Chu Yanzi gave Yanzi wine, and he drank it. Two officials tied a man to the king, and the king said, "Tie who? "
He said, "Qi people are also thieves." The King of Qi looked at Yan Zi and said, "Are Qi people good at stealing?" Yan Zi avoided the table and said, "Babies smell it, but oranges are born in Huainan and oranges are born in Huaibei. Leaves are similar to disciples, but they taste different. What's that? Soil and water are different. Now people's livelihood is better than Qi's, but they stole it when they went to Chu. If he has soil and water without Chu, then the people are good and thieves. " Wang smiled and said, "saints are not interested in happiness, but I am interested in disease."
The word "orange in the south and orange in the north" did not appear in Yan Zi's Spring and Autumn Annals, but appeared in Shi Yu Yan Ming's narrative of this historical story, and the plot was also different. For example, the thief caught by the Chu people is Yan Ying's entourage.