The Communist Party of China (CPC) is a Marxist political party, and keeping pace with the times is the theoretical character of Marxism. The party constitution Amendment adopted by the 19th National Congress of the Communist Party of China established the Supreme Leader’s New Era Socialism with Chinese characteristics Thought as our party’s action guide, and realized the party’s guiding ideology to keep pace with the times again. Comrade Supreme Leader pointed out in the report of the 19th National Congress of the Communist Party of China: "We must keep up with the times in theory, constantly understand the laws, and constantly promote theoretical innovation, practical innovation, institutional innovation, cultural innovation and other aspects of innovation". The theoretical character of the Supreme Leader’s Socialism with Chinese characteristics Thought’s keeping pace with the times in the new era has been fully demonstrated in carrying out great struggles, building great projects, advancing great undertakings and realizing great dreams.

　　The theoretical character of the Supreme Leader’s Socialism with Chinese characteristics Thought’s keeping pace with the times in the new era is highlighted in the great struggle. The great historical process of revolution, construction and reform led by our Party is closely integrated with the great historical process of China Marxism promoted by our Party. In this process, Mao Zedong Thought, Deng Xiaoping Theory, Theory of Three Represents, Scientific Outlook on Development and the Supreme Leader’s New Era Socialism with Chinese characteristics Thought came into being. Since the 18th National Congress of the Communist Party of China, the Communist Party of China (CPC) has been faced with the historical task of carrying out a great struggle with many new historical features. The background, space, field and concrete form of these struggles are different from those in the past. Aiming at highlighting contradictions and solving practical problems, the CPC Central Committee with the Supreme Leader as the core has made in-depth thinking and innovation on how to deal with major challenges, resist major risks, overcome major obstacles and solve major contradictions, and has formed a series of theoretical innovations, which constitute an organic part of the Supreme Leader’s Socialism with Chinese characteristics Thought in the new era. It can be seen that the great struggle promotes theoretical innovation, and the achievements of theoretical innovation guide us to successfully carry out the great struggle.

　　The theoretical character of the Supreme Leader’s Socialism with Chinese characteristics Thought’s keeping pace with the times in the new era is highlighted in the great construction project. Ideological construction is the basic construction of the party. To build the Party stronger, we must arm our minds with the Party’s innovative theory, constantly cultivate communist party people’s spiritual homeland, and keep the Party’s advanced nature and purity forever. Undoubtedly, promoting the new great project of party building will inevitably call for more theoretical innovations and greater theoretical breakthroughs. With theoretical innovation as the fulcrum, the new great project of party building will surely open up a new situation and win new victories. Socialism with Chinese characteristics Thought of the Supreme Leader in the New Era has enriched and developed the Marxist theory of party building, and provided a scientific guide for the realization of managing the party well, effectively and effectively. At present, it is necessary to arm the whole Party with Socialism with Chinese characteristics Thought of the Supreme Leader in the New Era, make up calcium and strengthen bones for party member and cadres, strengthen the foundation and cultivate the yuan, promote the comprehensive and strict management of the Party, continuously improve the quality of Party building, and ensure that the Party will always be the strong leadership core of the cause of Socialism with Chinese characteristics.

　　The theoretical character of the Supreme Leader’s Socialism with Chinese characteristics Thought’s keeping pace with the times in the new era is highlighted in advancing the great cause. Socialism in China has experienced great development from ideal to reality, from concept to system, from goal to road. It is in this historical process that the Communist Party of China (CPC) grew up, and it is in this historical process that Marxism realized China. Since the 18th National Congress of the Communist Party of China, we have made all-round and groundbreaking historic achievements and achieved profound and fundamental historic changes. After long-term efforts, Socialism with Chinese characteristics has entered a new era. The new era puts forward new topics, and new topics give birth to new theories. With great political courage and strong responsibility, the CPC Central Committee with the Supreme Leader as the core has systematically answered the important issues of what kind of Socialism with Chinese characteristics and how to adhere to and develop Socialism with Chinese characteristics in the new era from the combination of theory and practice, providing scientific theoretical guidance for adhering to and developing Socialism with Chinese characteristics in the new era.

　　The theoretical character of the Supreme Leader’s Socialism with Chinese characteristics Thought’s keeping pace with the times in the new era is manifested in the realization of great dreams. Since modern times, the Chinese nation has made a historic leap from standing up, becoming rich and becoming strong. Contemporary China is closer, more confident and capable of realizing the dream of the great rejuvenation of the Chinese nation than at any time in history. Undoubtedly, only when China becomes strong not only economically, politically, militarily and technologically, but also materially, spiritually, culturally and ideologically, can the Chinese nation achieve a complete national rejuvenation. Great times call for great theories, and great practice breeds great theories. Socialism with Chinese characteristics Thought of the Supreme Leader in the New Era is the inheritance and development of Marxism–Leninism, Mao Zedong Thought, Deng Xiaoping Theory, Theory of Three Represents and Scientific Outlook on Development, and the latest achievement of Marxism in China, which guides the whole party and people to make unremitting efforts to realize the Chinese dream of the great rejuvenation of the Chinese nation.

　　There is no end to practice, and there is no end to theoretical innovation. In contemporary China, upholding and developing Marxism is not only a theoretical mission, but also a political mission. It is precisely because of advancing with the times in basic theory and guiding ideology that all the work of our party can reflect the times, grasp the regularity, be creative, and show inexhaustible creative vitality. Since the 18th National Congress of the Communist Party of China, the cause of the Party and the state has opened up a new prospect in an all-round way, which lies in the flag-raising orientation and strategic planning of the CPC Central Committee with the Supreme Leader as the core, and in the scientific guidance of the Supreme Leader’s Socialism with Chinese characteristics Thought in the new era.

　　Every step forward in theoretical innovation, theoretical armed forces will follow. To realize the historical mission of the Party in the new era, to take charge of great struggles, great projects, great undertakings and great dreams, to win the victory in building a well-off society in an all-round way and to win the great victory of Socialism with Chinese characteristics in the new era, we must arm the whole Party, guide practice and promote work with Socialism with Chinese characteristics Thought of the Supreme Leader in the new era.

　　(The author is Yu Wenli, vice president and professor of Peking University Institute of Marxism)