As early as 2,800 years ago in the Western Zhou Dynasty, Shao Gong advised King Li of Zhou to stop suppressing different opinions: "Preventing people from speaking is more dangerous than preventing a river from flowing. If a river is blocked and bursts its banks, it will hurt many people, and so are the people. Therefore, those who manage rivers should dredge them to make them flow smoothly, and those who govern the people should allow them to express their opinions." This means that if you block everyone's mouth and do not let them speak, it is like blocking a big river and not letting it flow. The more water accumulates, one day it will break through the embankment, and the harm caused will be greater. Water control requires good dredging of rivers, allowing river water to drain along the river channel. And for the common people, they should also be allowed to speak freely and tell the truth, otherwise, the consequences would be unimaginable. Not only did King Li of Zhou not listen, but he also became more aggressive and adopted even more severe high-pressure tactics, causing everyone to live in fear. Acquaintances meeting on the road dared only look at each other. People could not endure the tyrant's rule, and finally, the first large-scale popular uprising in Chinese history, the "Rebellion of the Commoners," broke out. Taking advantage of the chaos in the palace, King Li of Zhou disguised himself as a civilian and fled abroad for the rest of his life.