To make a metaphor, everyone has his own advantages and disadvantages, each with its own merits.

2. There are days behind the scenes, and there are people outside. -Guo Xiaoting's Biography of Jigong

To make a metaphor, there are talents besides talents, which inspires people to be dissatisfied with the status quo.

3, a threesome, there must be my teacher. -The Analects of Confucius Shuer

It means three people go together, and one of them must be my teacher. Later, he said to learn from others with an open mind.

4. A gentleman does not hide his shortcomings; If he doesn't know, he will ask; If he can't, he studies. -Dong Zhongshu's Spring and Autumn Stories

It means that a gentleman (a virtuous person) should not hide his shortcomings, ask others if he doesn't know, and learn from others if he can't. It probably means don't pretend to understand, but be more shameless.

5. Teaching and learning have priority, and the technical field has specialization. -Han Yu's "Shi Shuo"

It means that the truth you hear comes first, and the academic research of skills has its own research direction.

learn from each other

Explanation: Absorb the strengths of others to make up for your own shortcomings. It also refers to absorbing the advantages of this in the same kind of things to make up for the disadvantages of that.

From: Mencius' On Mencius and Teng Wengong in the Spring and Autumn Period: Today Teng will learn from each other's strong points and make even 50 miles a good country.

Now Tengguo can learn from each other's strong points, and it can still become a good country 50 miles away.