The sources of some famous sentences in "The Analects of Confucius" are as follows:

1. When three people walk together, there must be one who is my teacher. Choose the good ones and follow them, and change the bad ones. This sentence comes from "The Analects of Confucius·Shu Er Pian". It means that if there are many people traveling together, there must be someone among them who can be my teacher. Choose their strengths to learn from, and when you see their bad aspects, correct them yourself.

2. People who have no long-term worries must have immediate worries. This sentence comes from "The Analects of Confucius: Wei Linggong Pian". It means that people have never considered the long term, and the trouble must be close at hand. This sentence reminds people to have a sense of urgency, not to be short-sighted, to focus on the present, on vested interests, and to think about what is behind and what may happen in the future. In this way, when encountering setbacks, you will be more open-minded, confident and wise.

3. Without indifference, there is no clear ambition, and without tranquility, there is no far-reaching goal. This sentence comes from "The Analects of Confucius Yong Ye Chapter". It means that without indifference, one cannot clarify one's ambition, and without tranquility, one cannot express lofty goals. This is a famous saying used by Zhuge Liang when he exhorted people to have good moral character and lofty ambitions.

4. If a worker wants to do his job well, he must first sharpen his tools. This sentence comes from "The Analects of Confucius·Wei Linggong Pian". It means that if you have made the necessary preparations in advance, everything will go smoothly and you will get twice the result with half the effort. This is a famous saying used by Confucius when he exhorted people to pay attention to preparation and planning in study and work.

5. There are three friends who benefit and three friends who harm. Friends who are straightforward, forgiving, and knowledgeable are beneficial; friends who are open-minded, friendly, and gentle, and friends who are sycophantic are detrimental. This sentence comes from "The Analects of Confucius·Ji Shi Chapter". It means that good friends can support and promote each other and make progress together. On the contrary, poor friends will eventually affect themselves. This is a famous saying used by Confucius when discussing the art of making friends.

The main content of "The Analects of Confucius":

The "Analects of Confucius" is one of the classic works of the Confucian school. It mainly records the words, deeds and dialogues of Confucius and his disciples. This book was compiled by Confucius's disciples based on Confucius' teachings, remarks and deeds after his death.

The Analects of Confucius is mainly written in the style of quotations and dialogues, most of which are Confucius' words and deeds and his teachings to his disciples, as well as the words and deeds of his disciples who were taught by Confucius. In The Analects, Confucius' thoughts are fully demonstrated, such as benevolence loves others, restraining oneself and returning to propriety is benevolence, and do not do to others what you do not want others to do to you.

The Analects of Confucius mainly covers all aspects of social life, including how to be a human being, study, govern, govern a country, and maintain peace and stability. In terms of being a human being, Confucius emphasized integrity, loyalty and benevolence, valuing righteousness over profit, etc.; in terms of learning, he put forward many learning attitudes, methods and contents. If you learn and practice it, isn't it true?

Those who know something are not as good as those who are good at it, and those who are good at it are not as good as those who are happy. etc.; in terms of politics and running the country, he advocated governing the country with virtue, putting etiquette first, attaching importance to people's livelihood, working diligently and caring for the people; in terms of ensuring peace, he emphasized that harmony is the most important, people-oriented, and valuing talents.