You can't appreciate the true meaning of a book until you read it fondly. If you only read it a few times and understand the great significance of the book, you will feel satisfied, and then you will find other books to read. Then, even if you have read this book, you haven't really understood its meaning. Human heart is where justice lies, and diligence will make you more sensible. As long as you keep a clear head and concentrate all day, how many books you will read and how much you will understand! If you are lazy, then your spirit will be confused, so groggy and unreasonable, what a pity! (Master) Q: "When ordinary things happen, we also know that this is natural and that is human desire. What should I do if I wait to do something, but I am tempted by people's desires and regret it afterwards? " Zhu replied: "This is a lack of self-denial. In response to this situation, it is very necessary to sort out the problem for him. It's like there is a road and a path ahead. Knowing in my heart that I should take the main road, I was attracted by the things in front of the path and walked along it unconsciously; I will regret it when I meet the thorns and weeds in front of me. This is the key to the struggle between justice and human desire. When encountering specific problems, we must do "self-denial" and not let ourselves drift. This requires first knowing right and wrong rationally, and then doing it bravely. If he is a saint, he doesn't have to work hard, and he will naturally do it according to heaven, instead of following people's desires. If you are a sage whose qualification is second only to that of a saint, you will certainly not do anything wrong in this situation, but you need to distinguish between heaven and human desires before you act. If you are an ordinary person, you need to be careful and control your desires at all times, so that things will not be misled by people's desires. Ceng Zi once said,' Isn't it heavy to take doing good as his life's mission? In order to achieve this mission, we must die, isn't it far?' He added:' As the Book of Songs says, being cautious is like walking on thin ice. From now on, I know I can be saved from the disaster! Students, you should work hard like this. Ting Xiu asked, "What books should I read now?" Zhu replied: "The ancient sages and sages educated people with their own personal experiences, not just for the surface, but for reading. Today I will distinguish between righteousness and benefit for the time being. Try to see yourself clearly, is it to be famous in front of others, or is it entirely for yourself? Confucius said, "A gentleman knows righteousness, but a villain knows profit." He added: "The purpose of ancient scholars' reading was to cultivate their own knowledge and morality, but now the purpose of scholars is to show others. Mencius said,' It is enough to talk about benevolence and righteousness. Why do we have to talk about profits? Although Mencius said this sentence to Liang Wang at that time, it is also a matter of life and death for scholars. Generally speaking, it is the most important issue to distinguish between learning and not learning. Every word, deed and action of a person has a question of righteousness or benefit. There is righteousness from here and benefit from there; Introversion is the road to the wise, and extroversion is the road to ignorance. On this issue (distinguish between inside and outside, righteousness and benefit, being a man or doing it for yourself), we must do it in a down-to-earth manner, and there is no room for discussion. If we have a clear understanding of this issue, we still need to make great efforts to go deeper, but this can be further discussed. "