Books in the Spring and Autumn Period mainly used bamboo as bamboo slips to write. A book needs a lot of bamboo slips, which are connected in order with strong ropes and the like, and finally become a book, which is easy to read. Confucius spent a lot of energy reading the Book of Changes again and again, adding a lot of notes. I don't know how many times he opened it. It is generally believed that Confucius could read and write in this way, and the cowhide belt of serial bamboo slips was worn off several times and had to be replaced with new ones for repeated use. Even after reading this, Confucius said, "If I live a few more years, I can fully grasp the literary quality of Zhouyi."

2. Confucius respects teachers

Confucius visited Laozi in Kyoto, humbly asking questions about etiquette and expressing his opinions. After Confucius returned to Lu, he praised Laozi to his students. He said: "bird, I know it can fly;" Fish, I know it can swim; Beast, I know it can run. I can weave a net to catch a running beast, I can tie a swimming fish to a hook to catch it, and I can shoot a flying bird with a good arrow. As for the dragon, I can't know how it took the wind and cloud to heaven. Laozi, it's still evil! "