China people always sweep their own snow and let others first frost.

In public places, some people talk loudly and some people smoke to pollute the air, but no one in China has ever stood up for justice to stop it. In foreign countries, even an old lady dared to point out that because she was fighting based on public anger, some people would support the angry protesters. In China, if people fight on the basis of public anger, no one will support them. If they win on the basis of public anger, they will be happy to enjoy the result. If they fail, they will never be willing to bear the consequences, and even complain that too many people fight first, resulting in their losses. This is the root of China people's self-interest and wisdom.