This is what Emperor Taizong said after his counselor Wei Zhi died of illness in the seventeenth year of Zhenguan. The original sentence is: "Husband, with copper as a mirror, you can dress properly;" Taking history as a mirror, we can know the rise and fall; Take people as a mirror, you can know the gains and losses. Wei Zhi didn't! I lost a mirror! " ?

The general idea is: "a person can see whether his clothes and hats are properly dressed by looking at copper;" Taking history as a mirror, we can know the reasons for the rise and fall of the country; Looking at people as a mirror, you can find your own right and wrong. After Kevin·Z died, I lost a good mirror. "

This shows that Wei Zhi played an important role during the reign of Emperor Taizong.

This sentence still plays a role in alerting us today, reminding us to always learn from others, face up to our mistakes and correct them.