() Joke idioms

Spear and shield are two ancient weapons. Spears can be used to attack and kill enemies; Shields are used for defense and can protect themselves.

There was a man who sold weapons in Chu State. He sold them everywhere with spears and shields. Everyone says that his spear and shield are made of the hardest materials. He pointed to the shield and later boasted to people, "My shield is special and the hardest, and no weapon can pierce it." Then he raised his spear and boasted, "My spear is the sharpest and can pierce anything!" " "

A man asked him, "What would happen if you stabbed your shield with your spear?" He couldn't answer a word when asked.

The idiom "contradiction" comes from this story. Used to describe things that are inconsistent and contradictory when handled.