What does it mean to dress with copper as a mirror?

It means: a person can see whether his clothes and hats are properly dressed by looking at copper as a mirror.

From: Biography of Wei Zhi, an old Tang book.

Original sentence:

Take copper as a mirror, you can dress your clothes, take history as a mirror, know the rise and fall, and take people as a mirror to know the gains and losses.

Explanation:

A person who looks at copper as a mirror can tell whether his clothes and hats are properly dressed; 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.

This sentence, which expands the information, comes from Li Shimin, Emperor Taizong in Biography of Wei Zhi in Old Tang Dynasty, and it is the highest evaluation of Wei Zhi's life value.

Wei Zhi is famous for being outspoken and daring to protest. According to the statistics of Zhenguan Politicians, Wei Zhi remonstrated with Li Shimin 50 times and made 1 1 suggestions to Li Shimin. Hundreds of thousands of words of advice in a lifetime. The number of times, the urgency of words and the firmness of attitude are unmatched by other ministers.

Achievements of relevant personnel:

Wei Zhi took the post of secretary in charge of the National Library. After the mourning, the laws were mixed. Four books were revised by scholars. Li Shimin asked him to write four books.

Proofread 20 people, calligrapher 100 people, proofread the writing secret cabinet. In the past few years, the secret government library has occupied brilliantly. After his new post, he continued to serve as secretary supervisor together with famous scholars such as Yu Shinan and Yan Shigu.

It is Confucianism to be cautious in punishment and lenient in punishment. It is believed that the essence of governing the country lies in virtue, courtesy, honesty and faith: in order to change customs, a wise monarch should do things of benevolence and righteousness instead of severe punishment; Laws alone cannot regulate people's behavior in the world.

Wei Zheng has a preface to Sui Shu and an introduction to Liang Shu, Chen Shu and Shu Qi. The editor-in-chief has a collection of books.