自相矛盾

In one town in old China, there lived a proud merchant. He owned a small store in the busy market.

On one side of his store were beautiful, straight spears. On the other side, were hard, strong shields.

At this time, China was often at war with itself.

The merchant knew soldiers needed spears for fighting and shields for protecting themselves.

The market was filled with shops and shoppers. There were restaurants, fruit stands, clothing stores, and more.

There was even another store that also sold spears and shields.