During the Three Kingdoms period, Shu Han was in an eventful autumn of war, with extremely heavy administrative work, complicated official duties and heavy workload. There is a man named Wei Fei, who is the official secretary of Shu Han. This man is really outstanding. He is smart and knowledgeable. Every time he examines an official document, he knows the main meaning at a glance. His speed is several times higher than that of ordinary people, and he has the ability to remember everything. It is this kind of photographic memory that is not possessed by ordinary people. Not only that, he is full of energy. He often listens to everyone's opinions in the morning and evening, handles official business, receives guests in the middle, eats, drinks, entertains and plays games. Every time, he can make people happy, and his official duties are not wasted.

The 60th chapter of Romance of the Three Kingdoms tells a story: Zhang Song went to Xudu to ask for an audience with Cao Cao. Seeing that Zhang Song was short and ugly, Cao Cao deliberately snubbed him and met him while washing his feet, which made Zhang Song very angry. The next day, Yang Xiu, the master book of Cao Cao's library, took out Cao Cao's new art book "Meng De Shu Xin" and showed it to Zhang Song to show Cao Cao's talent. Zhang Song read it again and wrote it down. He smiled deliberately and said, "This book can be recited by three-foot children in Shu. What is a new book? This was done by an anonymous person in the Warring States Period. " Yang Xiu didn't believe it, and Zhang Song said, "If you don't believe it, I'll recite it." So I recited Meng De's new book from beginning to end without any mistakes. Yang Xiu was afraid and told Cao Cao. Cao Cao said strangely, "Did the ancients think like me?" If you don't think your book is original, have it burned. In fact, Cao Cao was fooled by Zhang Song: Zhang Song memorized the whole book Meng De's New Book with his amazing memory.

There are many people like Zhang Song who never forget anything. Wang Chong, a thinker of the Eastern Han Dynasty in China, read a book when he was young. "Memories can be memorized at a glance". RoyceWong of the Three Kingdoms Wei Dynasty can "never forget". On one occasion, he and his friends read an inscription on the roadside, and their friends intended to test him and asked him to recite the long inscription he had just read. He did recite it word for word.

In the Tang Dynasty, there was a bachelor named Chang. 10 learned the Five Classics by heart when he was in his teens. Once, Emperor Xuanzong of the Tang Dynasty had him tested, took out a very rare book with thousands of words, and asked him to read it 10 times and recite it. As a result, I often read it for the seventh time and can recite it word by word.

There was also a Cui Juan in the Tang Dynasty. When he first went to Hangzhou to make a secretariat, he ordered everyone to write their names on a piece of paper and tie them on their lapels in order to get familiar with the names of clerks and attendants in the yamen. After he read it once, hundreds of bookkeepers and clerks can call them by their first names.