Selling Sheep is selected from Qi Yan Lu. There was a scholar in the Liang Dynasty who was stupid and seldom argued. He never understood sheep. Translate it. What does this story tell us?

There was a scholar in the Liang Dynasty, who was a bit eloquent and had never known sheep. Someone gave him a ram, so he tied it around his neck with a rope and took it to the market to sell. The price (of others) is not high, and (scholar) has not sold it for a long time. Everyone in the market knew he was stupid, so everyone traded a macaque for a sheep (secretly). After seeing the monkey, the scholar thought it was his original sheep, but it was strange because it had no horns and its face changed. When he watched the monkey's hands and feet keep moving, he thought the people in the market twisted their horns. However, because there was no wound on the monkey's head and there was no evidence, he said nothing. So he took the macaque home and said, "I have a strange animal that can be fat and thin." It used to smell like sheep, but now it stinks like here. I led (it) into the market several times, but I still couldn't sell it for many days. Its head has lost its horns, just like acacia fruit, and its face has become wrinkled like orange peel. "

Reason:

Reading can't just get into that pile of old papers, but also have some practical activities and accumulate some social experience, otherwise it will make a joke.