"The key to building a modern socialist country and promoting the great rejuvenation of the Chinese nation in an all-round way lies in the Party." It is a great practice of the Party's self revolution in the new era to govern the Party strictly in an all-round way, which has opened up a new realm for the centennial self revolution of the Party. "Ten years of sharpening a sword" has made historic and groundbreaking achievements in comprehensively and strictly governing the Party, which has had an all-round and profound impact. It has stopped some unhealthy practices that have not been stopped for many years, solved many persistent problems that have not been solved for a long time, eliminated serious hidden dangers within the Party, the country and the military, and significantly enhanced its ability to purify, improve, innovate and improve itself, The leniency and softness of governing the Party have been fundamentally reversed, and the political ecology within the Party with a clean and upright atmosphere has been constantly formed and developed. Through unremitting efforts, the Party has found the second answer to self revolution, which breaks out of the historical cycle of the rise and fall of chaos control, won the historical initiative of maintaining flesh and blood ties with the people and the people's heartfelt support, and won the historical initiative of the whole Party to be highly united, to be in the forefront of the times, and to lead the people to achieve the great rejuvenation of the Chinese nation. Looking back on the centenary of struggle, the Party, outside the Party, relies on the development of people's democracy, accepts people's supervision, relies on the overall strict governance of the Party, promotes self revolution, dares to adhere to the truth, correct mistakes, dares to strike the blade inwards, cures bone and poison, and ensures the Party's enduring prosperity and continuous development. A party that has gone through many vicissitudes of life but has not changed its original mind can achieve lasting success; Only a party that has made great achievements and is still brave in self revolution can be invincible. Courage in self revolution is the distinctive character cultivated by the Party through a hundred years of struggle, and it is also the greatest advantage of the Party. The key for our Party to overcome one difficulty after another and win one victory after another is to always adhere to the principle that the Party should govern the Party, strictly govern the Party in an all-round way and not relax, and carry out thorough self revolution while promoting social revolution. The report of the 20th National Congress of the Communist Party of China pointed out: "As the largest Marxist ruling party in the world, our party must always keep sober and firm in solving the unique problems of the big party in order to win the support of the people and consolidate its long-term ruling position." Since the 18th National Congress of the Communist Party of China, we have solved many outstanding problems within the Party. However, the "four major tests" facing the Party will exist for a long time, and the "four dangers" will exist for a long time. Under the new historical conditions, the key to maintaining the Party's Marxist party identity is to rely on our Party itself.