Common sense should always be doubted by us. It's usually made up of some individuals for some specific goals because the individuals know common sense is the best way to make people credule and control them. The Nazis and Culture Revolution in China are proofs that the common sense is doubtful and harmful.
In the World War II, Nazis were very enthusiasm in the common sense that exterminated all the Jewish. They tried so hard to find every Jewish and put them in the camp. The Nazis got lots of ways to exterminate the Jewish, such as burn, drugs, gas and so on. The Nazis lost their minds, and they didn't regard the Jews as human beings or even lower than animals. They just tried to find the most horrible way and the fastest way to exterminate. Many Jews tried to escape from their claws. No one wanted to die there. But the common sense was totally wrong, it's crazy and relentless. No one has the rights to exterminate others, and the Jews didn't do anything wrong.
During 20th Century in China, China started a revolutionary wave called Culture Revolution. People in China who said anything good about capitalism and do something similar to capitalism would be regarded as renegades. It doesn't matter whether they're generals or poor kids. People would criticize them and put them in jail. Even He Long who is one of the most famous generals in China died in the Culture Revolution. The common sense was a big fault in the history. The chinese just followed the common sense without a thought. They should accept the new good things no matter where they came from.
In conclusion, common sense is usually wrong, and doubtful. As we all knew now, the common sense that the Nazis believed is from Hitler; the common sense in the Culture Revolution is from the mind of Mao. In other words, common sense is usually made from some ideas of individuals. But individuals can be wrong and doubtful whether they are great or not.
