This is Fan Kuai's advice to Liu Bang at the Hongmen banquet. At that time, the situation at the banquet was extremely unfavorable to Liu Bang. Liu Bang was going to escape by going to the toilet, but he was worried about losing his manners, so Fan Kuai persuaded him. Because of do or die, Liu Bang also neglected any "caution" and "small concession". But today, we should look at this problem dialectically. If you want to do great things, you should also pay attention to small details such as your usual words and deeds. We should always guard against, correct small mistakes in time and constantly improve ourselves in order to make a difference.