In March 1949, Comrade Mao Zedong issued the great call of "two musts" to the whole party at the Second Plenary Session of the Seventh Central Committee of the Party. Seventy three years later, President Xi emphasized in his report to the Twentieth National Congress of the Communist Party of China: "All Party members must not forget their original intentions, remember their mission, be modest and prudent, work hard, dare to fight, be good at fighting, strengthen their historical self-confidence, enhance their historical initiative, and write a more brilliant chapter of socialism with Chinese characteristics in the new era." Knowing its origin, we can know its future. President Xi once pointed out that Comrade Mao Zedong's "two musts" in Xibaipo that year included a profound reference to the laws governing chaos in China's thousands of years of history, a profound summary of the arduous struggle of our party, a profound concern for the victorious political parties to maintain progressiveness and purity, and for the upcoming people's regime to achieve long-term stability, It contains a profound understanding of our Party's fundamental purpose of serving the people wholeheartedly, and has profound ideological and historical significance. In the new era and new journey, the "three musts" fully demonstrate the firm strategic confidence and high strategic sobriety of the centennial CPC, fully reflect the political wisdom of the CPC people's self-reliance and self motivation, and the political character of being realistic and pragmatic, and fully reflect the strong historical consciousness and responsibility of the CPC people in the new era. Keeping the original intention and mission in mind is the central embodiment of the Party's nature, purpose, ideal and belief, and goal. The centenary journey is magnificent, and the heart at the beginning of the centenary is enduring. Once the CPC was born, it established its original mission of seeking happiness for the Chinese people and rejuvenation for the Chinese nation. On the way forward, we should keep in mind the fundamental issue of what the CPC is and what it wants to do, integrate the original intention into the soul, shoulder the mission, anchor the centennial goal of building the army, forge ahead with perseverance and perseverance, effectively perform the military mission in the new era, and always be a hero army that the Party and the people can trust. Modesty, prudence and hard work are the fine traditions and work style of our Party and army. The centenary achievements are incomparably brilliant, and the centenary party is in its prime. The more this is done, the more we must carry forward the spirit of self revolution. We must not lose ourselves in the applause, and we must not lose the heirloom of hard work. "Sail against the current with great strength, and one pole will relax." Faced with a more glorious mission and a more arduous task, we must always keep half of those who travel a hundred miles sober, and maintain the determination to win without pride, lose without discouragement, and the attitude of indomitable struggle, We will live up to President Xi's request during his visit to the Red Flag Canal in Henan Province: "The young generation should inherit and carry forward the spirit of hard work, self-reliance and hard struggle, abandon arrogance and pettiness, and like our parents, engrave their youth on the monument of history." Daring to fight and being good at fighting are the distinctive character of the CPC and the political advantage of our party and army. Our Party and army were born at a time when the country was in domestic and foreign trouble and the nation was in danger. They were born with the brand of struggle. Along the way, they sought survival, development and victory in the struggle. In the new era and on the new journey, we should carry forward the spirit of struggle, firm the will to struggle, and pay attention to struggle