it should be: don't look at each other for three days. During the Three Kingdoms period, Lu Meng, a general of Soochow, was foolhardy at first. Sun Quan advised him to study and read more books. Lu Meng began to study all day long, and the books he read were not even comparable to those of the old Confucian scholars. Later, when Lu Su met Lu Meng, he boasted that he was no longer the former Amon under Wu. It really was: Don't look at each other for three days.