I want to post a slogan above the mirror at work, what is suitable?

Look in the mirror and dress appropriately. Kind people are humble and polite, while useless people act recklessly.

There are two allusions:

When Wei Zheng died of illness, Li Shimin was very sad and said: "Using copper as a mirror, you can dress your clothes; using history as a mirror, you can know the rise and fall, and use people as a mirror. A mirror can tell right from wrong. "When Wei Zheng died, I lost a mirror." Zeng Guofan once said that there must be three signs before social chaos: "1. No matter what happens, there is no distinction between black and white." People are becoming more and more humble and polite; useless people are becoming more and more arrogant and reckless. 3. When the problem reaches a serious level, everything is rationalized, everything is accepted, and it is inexplicable. ”