The Chinese nation has a long history, Chinese civilization has a long history, and Chinese culture is broad and profound. Since the 18th National Congress of the Communist Party of China, the Central Committee of the Communist Party of China has attached great importance to the exploration of its own history, the tracing of its own civilization and the promotion of its own culture. Reply to all editors of the editorial department of literature, history and philosophy. Recently, the Political Bureau of the CPC Central Committee conducted the 39th collective study on deepening the project of exploring the source of Chinese civilization. It can be seen that the Central Committee of the Communist Party of China has always attached great importance to the study of the history of Chinese civilization. "All things are born, but only know how to keep their roots." First of all, Chinese civilization is very important. It is a unique spiritual symbol of the Chinese nation. Its ideological concepts, humanistic spirit and moral norms shape the core of Chinese thought and spirit; It is the foundation of contemporary Chinese culture. Whether we adhere to the fundamental guiding ideology of Marxism, inherit and carry forward revolutionary culture and develop advanced socialist culture, we must look for a source of fresh water from the excellent traditional Chinese culture, which is the foundation for us to stand firm in the agitation of world culture; It is the spiritual link that maintains the Chinese people all over the world. The Chinese civilization belongs to the common spiritual wealth rooted in each other's hearts. It is also a cultural gene connected by blood and soul. It can be called the common spiritual home of the Chinese people all over the world; It is also a treasure of Chinese cultural innovation. The so-called profit and loss due to reform and keeping pace with the times lies in giving new ideas to old things in the process of returning to the original. At present, to promote the creative transformation and innovative development of China's excellent traditional culture, we must focus on carrying forward the cultural spirit that spans time and space, transcends the country, has eternal charm and contemporary value in a long civilization. Secondly, the Chinese civilization is very unique. The Chinese civilization is a civilization that has come into being on the land of China. Being kind to neighbors and cooperating with all nations is the consistent way for the Chinese civilization to deal with the world. Benefiting the people, calming the people and enriching the people are the distinct value orientation of the Chinese civilization. The eternal spiritual temperament of the Chinese civilization is to make innovations and keep pace with the times. The inherent survival philosophy of the Chinese civilization is to follow the nature and the unity of heaven and man, "Stressing benevolence, valuing the people, abiding by integrity, upholding justice, advocating harmony and seeking great harmony" is internalized into the spiritual characteristics and development form different from other civilizations. Thirdly, Chinese civilization is crucial. It is precisely because the Chinese civilization is rooted in the land of China, has a unique cultural gene and its own development process, and is inclusive in exchanges and mutual learning with other civilizations in the world, so it can continue to make progress with the times and maintain vigorous vitality. Our unswerving pursuit of the road of socialism with Chinese characteristics, the completion of the goal of building a modern socialist country in an all-round way and the realization of the Chinese dream of the great rejuvenation of the Chinese nation are inseparable from the in-depth study of the history of Chinese civilization, which is the cultural heritage and theoretical support for clarifying the Chinese road, and also the basic basis for "promoting the world to understand China, the Chinese people, the Communist Party and the Chinese nation". In other words, this requires us to have a sensitive and strong sense of civilization and history, and grasp China's road evolution, future vision, historical mission and its relationship with world civilization from a broad perspective of civilization. "Those who seek to grow old must consolidate their roots." The project of exploring the source of Chinese civilization is a major project that carries out a multi angle, multi-level and all-round comprehensive research on the origin and early development of Chinese civilization. For a long time, for the 5000 year history of Chinese civilization we are proud of, the academic interface faces many major issues to be tackled: How did the Chinese civilization with a long history originate? What kind of development has it experienced? Why did you go through such a development process? What are the characteristics of the origin and development of Chinese civilization? Why are these characteristics formed? What is the driving force for the origin and development of civilization? What is the specific situation of scientific and technological inventions and creations as the main material connotation of Chinese civilization and the development of spiritual culture? Over the past few decades, several generations of scholars have been steadfastly committed to moving forward. The research results of major projects such as the source exploration project of Chinese civilization have demonstrated China's millions of years of human history, 10000 years of cultural history and 5000 years of civilization history, the historical context of the origin, formation and development of Chinese civilization, the formation and development process of the diversified and integrated pattern of Chinese civilization, and the characteristics and causes of Chinese civilization, Have a relatively clear understanding. Of course, we should also clearly realize that the existing achievements are still preliminary and phased, and there are still many major problems to be solved. For example, due to the lack of sufficient written records, there are still a large number of gaps in the study of the history of the Xia Dynasty. Another example is whether prehistoric figures such as "Three Emperors and five emperors" are myths and legends or real people? All these require joint efforts by Archaeology and history, humanities and natural sciences to broaden the scope and coverage of research space and time. "There is a thousand year old root below, and its frown is as curly as a curl." Looking to the future and moving towards an in-depth study of the history of Chinese civilization, on the basis of existing achievements, we should strive to closely combine the study of the origin of Chinese civilization with the study of major issues such as the characteristics and forms of Chinese civilization, and pay attention to the construction of the discipline system, academic system and discourse system of civilization research with Chinese characteristics, Chinese style and Chinese style, so as to provide strong academic resources and theoretical support for the practice of the new form of human civilization. We should adhere to integrity and innovation, promote the adaptation of China's excellent traditional culture to the socialist society, and thoroughly explain how to better adhere to the Chinese road, carry forward the Chinese spirit and pool Chinese strength from the perspective of the combination of history and reality, theory and practice. We should carry forward the common values of all mankind contained in the Chinese civilization, promote the construction of a community of shared future for mankind, "clarify what kind of civilization and country China is, clarify the Chinese people's outlook on the universe, the world, society and morality, show the long history and cultural heritage of the Chinese civilization, and promote the world to understand China, the Chinese people, the Communist Party of China and the Chinese nation". "Those who have dredged the source flow long, and those who have deep roots grow luxuriantly." In dealing with Chinese civilization, future generations should adhere to the principle of "not fishing in the Yangtze River Estuary, but mining in Tanggula Mountain for gold". After years of this, the tree of our civilization will have unparalleled inclusiveness and absorption, so that it can flourish and remain young forever. (Xinhua News Agency)