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In the winter of 511 BC, the Grand Master of the State of Qi, Hei Qiu, betrayed the State of Qi with a fiefdom and defected to the State of Lu. Originally, the villain was humble, and "Spring and Autumn" could not be remembered, but Confucius still recorded it.
The "Left Biography" commented that a fief who treasoned against the country, even a small person, would be famous for this, and could not be covered because of the lowliness of the earth.
Trying to cover up the truth of the bad things, the result is more obvious.