Reviewing the past and learning the new can be a teacher. The Analects of Confucius is a political article, which means to review old knowledge and gain new knowledge and experience. With this, you can become a teacher. Explain that people's new knowledge and new knowledge are often developed on the basis of what they have learned in the past.
Review the past and learn the new: therefore, what has passed (referring to the knowledge that has been learned or mastered) is new and has just been learned.
There are four solutions to "review the past and learn the new"
One is to "review the past and learn the new": review what you have learned and gain new insights from it;
The second is to "review the old and learn the new": on the one hand, we should review the stories of laws and regulations, on the other hand, we should strive to acquire new knowledge;
The third is to review the old and learn the new. With my rich experience and improved understanding, I can always learn more from what I saw before when I look back.
Fourth, by reviewing history, we can foresee and solve future problems. This is the ability that a real master should have.