A long,long time ago,a merchant in the State of Chu sold both spears and shields.He bragged about his shields one day.'My shield is the strongest in the world and nothing can pierce it,' he said.Then he bragged about his spears,'My spear is the sharpest and can pierce anything.' Someone then asked,'What would happen if you use your spear to pierce your shield?' The merchant did not know what to say after hearing this.
这是我自己翻译的
