It means that if you think something has nothing to do with yourself, just put it aside; Throw things that have nothing to do with you away.
From Mao Zedong's "Against Liberalism": "It's none of your business, hang high; It's better to talk less when you know it's wrong; Be wise to protect yourself, but ask for nothing. "
Step 2 stand by and watch
Put your hands in your sleeves and watch. Metaphor is to stay out of it, neither asking questions nor helping others.
From Tang Hanyu's "Sacrifice to Liu Zihou": "Those who are not good at it are ashamed of blood, and skillful craftsmen shrink their sleeves on the sidelines."
Moral: People who are not good at chopping are bound to bleed their fingers and sweat on their heads, while skilled craftsmen can only watch and put their hands in their sleeves.
3, everyone sweeps the snow in front of the door, regardless of others' frosting.
It means stay out of other people's business, especially stay out of it.
From the Ming Dynasty Zhang Fengyi's "Ming Fa": "Go in and sweep the snow in front of the door, regardless of the frost on the tiles."
Interpretation: Go in, let's sweep the snow in front of our own house, and don't care about the frost on other people's tiles.
4. Pay attention to the fire on the other side
It is a metaphor for not helping people when they are in danger, and taking a bystander attitude.
From Don Qian Kang's "Cast Your Eyes on Everyone": "The world of mortals on the other side is as busy as fire; When the green scorpion is as cold as ice. "
Interpretation: people come and go in the red dust on the other side, and the predecessors in the temple in the mountain are cold.
Step 5 stay out of it
Stay out of it and don't care.
From Chapter 35 of Qing Li Garbo's A Brief History of Civilization: "This Peng Zhongxiang stood by and stayed out."