Dao Yin and Yang Dao came to the city gate and the guard said, "Sir, you need to pay the entry fee."
The two were surprised and then Yang Dao asked, "Sir, may I ask, what is the entry fee for?"
The soldier noticed that the other party is very polite so he said, "Sir, the city does not have any citizens, it was established for the people to seek out opportunities and flourish. Even the shops inside will change owners every six months. This is to let other people have the chance to get in. The owners are selected on either the uniqueness or the comparison of their products.
