1. Knowing is knowing, not knowing is not knowing

It means that knowing means knowing, and not knowing means not knowing (you cannot pretend to understand).

2. Be tireless in learning and tireless in teaching

It means to study hard without feeling bored and to teach others without feeling tired.

3. When three people are walking together, there must be my teacher. How can I choose the good ones and follow them, choose the bad ones and change them?

It means: When three people are walking together, there must be my teacher among them. . I choose his good aspects to learn from him, and when I see his bad aspects, I correct my own shortcomings.

4. Smart and eager to learn, not ashamed to ask questions

It means: smart and eager to learn, and not ashamed to ask for advice from people with lower status and less knowledge than yourself. This sentence shows that in order to gain true knowledge, it is indispensable to be eager to learn and good at asking questions, and to achieve these two points, you need to have a humble attitude.

5. A gentleman is magnanimous and magnanimous, while a villain has long relationships.

It means: A virtuous person has a flat and broad mind, but an ungrateful person is often cramped and melancholy.

6. A small impatience will ruin a big plan

It means: If you can’t tolerate small things, you will ruin big things.

7. Reviewing old knowledge and learning new knowledge can become a teacher

It means: Reviewing old knowledge and then understanding new knowledge can become a teacher.

8. Don’t do to others what you don’t want others to do to you

It means: don’t impose on others what you don’t want.