Are you talking about Su Shi’s famous saying about wearing a mask during the epidemic? Even if we meet, we should not know each other.

It comes from "Jiangchengzi·Dreams on the Twentieth Day of the First Month of Yimao" by Su Shi, a poet of the Northern Song Dynasty. Ten years of life and death. If you don’t think about it, you will never forget it. Thousands of miles of lonely tomb, no place to talk about desolation. Even if we meet each other, we should not know each other, our faces are covered with dust and our temples are like frost. At night, you suddenly return to your hometown with a deep dream. Xiaoxuan window, dressing up. They looked at each other without words, only a thousand lines of tears. It is expected that the broken part of the intestines will be cut off every year, on a bright moonlit night, there will be short pines.

Be careful to wear a mask during the epidemic. If you wear a mask, you will not be able to recognize who you are even if you meet someone. This means that even if you meet someone, you will not know who you are.