After seeing each other for three days, I saw each other with admiration.

Meaning: I haven’t seen this person for a long time, but if I see him today, I should treat him with new respect immediately.

The meaning of this sentence:

First, those who can be admired in three days must be "scholars", that is, people with ambition and ambition;

Second, if a scholar wants to be admired by others, he must distinguish "three days". Of course, the three days here do not refer to three days (three days here is an imaginary number), but refer to a period of time;

Third, time can change everything, and the accumulation of quantity will lead to qualitative changes;

Fourth, things develop and change, and you cannot look at the same thing with old eyes and old viewpoints.

Extended information:

During the Three Kingdoms period, General Lu Meng of the Wu Army did not like studying when he was young. Later, he followed Sun Quan's advice and read a lot of books "tirelessly" and made great progress in knowledge. "Sun Quan Encourages Learning" was compiled and adapted by Sima Guang based on this historical material.

This article not only narrates the story of Lü Meng starting to study under Sun Quan's persuasion and then making great progress, but also praises Sun Quan and Lü Meng for their serious study spirit, and warns people about the importance of learning.

This article is concise and vivid. The first priority is to express the characters through dialogue. The dialogues are concise and meaningful, vivid and expressive, and highly expressive without any redundancy. It also uses side contrast and contrast techniques to shape the characters. The image highlights the character's style.

Baidu Encyclopedia - Sun Quan encourages learning