There was a small village. There were only more than two hundred people in it. The village was in the south of a city.
The village was special because in this village everybody was wealthy. They all had beautiful houses and very nice clothes. They were good at business so they were rich.
A young man wanted to know why, so he came to the village one day. He walked for a long time but he didn't find the reason. So he went to the market place and he started to talk with a businessman in a white shirt.
"Look, "he said, "the people in your village are very famous. You are all good businessmen. What is the secret?" "What is the secret?" answered the businessman, "The secret is this. We eat a lot of fish and the fish is good for our brains. It makes us clever. ""I see, "said the young man. "and what is the name of the fish?" "I don't know." said the businessman, "But if you give me $10, I can send you some. "The young man thought that was a good idea. So he gave the businessman $10 and left. Soon, the young man received a box. In a box, there were three fish.
After about a month, the young man met the businessman again. "Thank you for the fish, "he said, "but listen, S10 is too much for the three fish" "Ha! You see!" said the businessman, The fish is beginning to have an effect（效果）. You are becoming clever. "
