The advanced nature of the Party and the advanced nature of Communist Party members are organically connected. The Chinese Communist Party is the vanguard of the Chinese working class, as well as the vanguard of the Chinese people and the Chinese nation; a communist is a vanguard fighter with communist consciousness. The advanced nature of the Party is the prerequisite condition for the advanced nature of Communist Party members, while the advanced nature of Party members is the foundation of the Party's advanced nature. The advanced nature of the Party and that of Party members serve as each other’s premise and condition. Maintaining the advanced nature of communists is of great significance to maintaining the advanced nature of the Party. To correctly understand the scientific connotation of the Party's advanced nature and the relationship between the advanced qualities of Party members, one must first have a correct understanding of the scientific connotation of the Party's advanced nature and that of Party members. The Party's advanced nature is mainly reflected in its program, Party Constitution, standards for Party members, Party discipline, etc., and it is reflected in the fact that the Party always represents the development requirements of China's advanced productive forces, the direction of advance of China's advanced culture, and the fundamental interests of the overwhelming majority of the Chinese people. Practice has proven that the starting point and end point of the policies, lines, and guidelines of the Communist Party of China are the fundamental interests of the people, and it always achieves this by reflecting the developmental requirements of the era, thus becoming the vanguard of the Chinese working class, the Chinese people, and the Chinese nation in every historical period. In contrast, the fundamental reason why the Communist Parties of the Soviet Union and Eastern Europe lost their advanced nature lies in their deviation from Marxist doctrines, resulting in programs and lines that no longer represented the fundamental interests of the people, leading to a loss of morale. This shows that the Party's advanced nature, in the final analysis, should be judged by its practical role in propelling history forward, by seeing what direction the Party represents and reflects the will of which people. The Party's advanced nature depends on the Party itself, its theoretical foundation, the Party organization, the Party system, and Party members. Only when these aspects are addressed can the Party's advanced nature be maintained over the long term. The advanced nature of a communist is mainly embodied in each Party member's quality, ability, and actions according to the Party's advanced nature, playing a vanguard and exemplary role. Due to the changes and adjustments in the Party's creed and course at different historical stages with the development of the times and tasks, the advanced nature of Party members exhibits distinct characteristics of the times. During the revolutionary period, the advanced nature of Communist Party members was concentratedly reflected in the heroic struggle for China's national independence and the liberation of the Chinese people. In the reform and opening-up period, the advanced nature of communists is reflected in the practice of the theory of socialism with Chinese characteristics, setting an example by personally participating in the primary stage of socialism, and playing a vanguard and exemplary role in promoting socialist modernization construction. As Comrade Jiang Zemin pointed out: under new historical conditions, communists maintaining their advanced nature should reflect the requirements of the times, uphold the lofty ideal of communism, implement the Party's and the state's policies at this stage, dare to open up, be aggressive, not fear difficulties or setbacks; act with conscience for the benefit of the people, endure hardships first, enjoy later, wholeheartedly devote themselves to public duty, and make more contributions; seriously study Marxist doctrines, enhance the ability to distinguish right from wrong, master the knowledge and skills needed for their work, strive to create first-class achievements; step forward bravely in critical times, safeguard the interests of the country and the people, and resolutely struggle against behaviors that harm the people, society, or endanger the state. This is a scientific generalization of the ideological and behavioral aspects of communists in the new era. Through analyzing the advanced nature of the Communist Party and Party members, we can see that, first, the Party's advanced nature is not equivalent to the advanced nature of Party members. The elements constituting the Party's advanced nature are more complex than those constituting the advanced nature of Party members. The Party's line, program, Party Constitution, Party system, and Party members constitute the elements of the Party. On the other hand, the advanced nature of Party members is mainly constituted by individual members. Second, the Party inevitably requires Party members to be advanced; in this sense, both are unified. However, this unity does not come naturally. Only when the behavior of Party members is consistent with the Party's advanced nature do the two become unified. Third, the Party must pass through the advanced nature of its members to be recognized by the masses. People judge whether a party is advanced not just by its theories, programs, and lines but more importantly by observing the actions of communists and the results of these actions. In this sense, Party members are the carriers of the Party's advanced nature. Maintaining the advanced nature of communists is the necessary path to realizing the Party's advanced nature. The advanced nature of Party members is inseparable from the Party's advanced nature, and the Party's advanced nature is also inseparable from the advanced nature of Party members. Since the Third Plenary Session of the Eleventh Central Committee, our Party has embarked on the socialist road with Chinese characteristics. Despite serious setbacks for socialism worldwide and amidst the winds of change in domestic and international situations, the Party has played an indispensable role, steadfastly standing firm, showing vitality, and always maintaining its advanced nature. When the Party adheres to Deng Xiaoping Theory and the important thought of 'Three Represents', it aligns with the national conditions of the primary stage of socialism and the developmental requirements of the times, establishing a basic line...