Collection of Books is the representative work of his academic and political thoughts. "I don't know if I don't care about this world, but I don't care about people in this world. If you are trapped in the middle, you can't get it, you can talk about it "("Hidden "). It took 30 years to write a book. For forty years, he has been strong and sharp. Although he knows that he is useless to the world, he is still looking forward to it. He was trapped in a long journey, and he was immersed in personnel. He ate chaff in bad years, scattered his slaves and destroyed his ambition. He sighed in shame and said,' I don't know how to be a husband!' Don't worry about the world, I don't know, and harm the world. In the middle of stagnation, there must be no words. Say it when you see it, and say it when you smell it. Thirty years later, it is divided into two chapters: in the first chapter, linguists have 50 articles; The speaker is in the next chapter, where there are 47 articles; It's called "Collection of Books". Looking up at the sky, overlooking the personnel, looking at the historical sites from a distance, looking at the present, and taking root in the heart, such as seeking government in its place. "("Next, Latent ")

The Hidden Book (1705) originally imitated the style of Lun Heng, named Heng Shu, 13, signed by Tang Datao, aiming at weighing the world. Later, it was gradually increased to 97 articles, and it was renamed as "Collection of Books", signed by Tang Zhen, meaning to hide it for later use.

The book is divided into two parts, each of which is divided into four volumes, with a total of 97 orders. This book is mainly a political paper and partly an educational work. The content is not quoting classics, annotating classics, or even different from the Confucian study of chapters and sentences after the Han Dynasty. Instead, he drew lessons from the peasant uprising caused by political corruption in the late Ming Dynasty, and put forward a series of political and religious views and propositions that attacked the autocratic monarchy and advocated people-oriented progress, aiming at managing the people well, abandoning Zhu Cheng Neo-Confucianism, helping the world with practical learning, and ruling the country and leveling the world.

Philosophically, The Hidden Book focuses on Mencius' theory of sex and advocates that everything in the world has spirits. However, I must really see that everything in heaven and earth is in my nature, and I can really fit everything in heaven and earth with sex. It believes that this personality is benevolence, righteousness, courtesy and wisdom, and it is the human heart. It says: Yangming's death is the most important thing, but he can't last long, but he doesn't want to be outside, but wants to be inside, with conscience as the fulcrum. This clearly shows the author's idealistic tendency. However, the main content of Hidden Book is the criticism of feudal autocratic system and autocratic monarch, which has a preliminary democratic enlightenment thought. In the book, the author puts forward the argument that the people who confuse the world are only monarchs and emperors, not gods and gods. It reveals that under the feudal system since the Qin Dynasty in 2000, it seems that generals killed people, generals killed people, soldiers killed people and officials killed people. In fact, it was the emperor who killed people and advocated punishing the autocratic monarch. The book reveals the social inequality under the feudal system, saying that it takes farmers a year to taste a table of banquets at the princes' house, while Wuxi people are not fierce. Porridge, ashes mixed with straw, even so, no one who eats it will think it is the best food in the world. Therefore, it issued a warning that injustice will destroy the world and put forward the principle of equality between heaven and earth.

The Collection of Books has the same view as Huang Zongxi's Ming Yi to Be Visited. At that time, it was highly valued, and every article was published, and everyone competed for it. Have a certain influence on future generations. However, its theoretical depth and achievements are not as good as Ming Yi Waiting to be Visited.

The first part, from the beginning of distinguishing Confucianism to the end of Guanbo, has a total of 50 orders and more academic words. The main purpose of his philology is to respect Mencius, influence Lu Jiuyuan and Wang Yangming, and safeguard Wang Yangming's theory of conscience. He believes that work comes from the cultivation of mind, which should be manifested as work, and advocates the principle of unity of knowing and doing and putting qi first. Oppose Zhu Cheng's Neo-Confucianism's empty talk about mind.

The first chapter is 2 1, from "discriminating Confucianism" to "persuading learning". Distinguishing Confucian Zun Meng Zongmeng, the French king suffers from knowing and doing, and his talent is self-evident. He is very happy to enter Heng Yue University. He is 70 years old, helpless, angry, respectful, lecturing and persuading students.

The first part consists of 29 articles, from "taking goodness" to "learning from the classics". Do good deeds, do good deeds and make a name for yourself. The five classics are non-literary, the words are fresh, and the monarch and the minister are restrained. The teacher, the prince, is prepared to be filial and clear, and the couple in the dormitory are good at teaching their children, so it is difficult to remain humble and complacent, and live in seclusion in the mountains.

The next part, starting from Shangzhi and ending in Qiancun, has forty-seven orders and talks about politics. His political principles criticized the autocratic monarchy and advocated equality, and put forward measures such as reforming politics, rectifying bureaucracy, reusing talents, distinguishing rewards and punishments, attaching importance to learning soldiers, encouraging agriculture and mulberry, and enriching the people first.

The next chapter consists of 24 articles from Shangzhi to Yongzheng. Manage the country and enrich the people, learn from experience, take the test, reserve the right to speak for the government, and use your real example as a good minister to persuade your good shepherd to be a provincial official, a government official, an official, a bandit, and your kindness to care for lonely and good travelers to enter the government.

The next part, from "lazy poverty" to "latent existence", consists of 23 articles. Laziness and poverty teach silkworms to save punishment. In addition to the party's humble slaves, ugly slaves, domestic slaves, shameful slaves, and women's defense against Wu's abuses, they all learn the five-form exam and know that the two rights are accepted, and they are benevolent and stop talking.

Prefaces to poetry and prose