Master Zhu has been cutting hair for Premier Zhou for more than 20 years. Once shaving, Premier Zhou coughed and cut his face, which made Master Zhu deeply uneasy. Premier Zhou comforted him and said, "You can't blame this. I didn't say hello when I coughed. Fortunately, you hide the knife quickly! " Master Zhu was deeply moved by the words of the Prime Minister. It can be seen that elegant, amiable and tolerant language not only communicates people's hearts, but also reflects a person's ideological sentiment and cultural accomplishment.