More than 70 years ago, Comrade Mao Zedong gave the first answer in the "cave dwelling" in Yan'an, that is, "let the people supervise the government"; After a hundred years of struggle, especially the new practice since the 18th CPC National Congress, our Party has given a second answer, which is self-revolution. It can be clearly seen from both the Marxist party theory and our party's ruling practice that this consistency is contained in the dialectical unity of the party's original mission, the party's purpose and nature, and the development of things. It is consistent with the Party's original mission. As soon as our Party was born, it has established its original mission to seek happiness for the people and rejuvenation for the Chinese nation. This is not only the original mission that the Communists have always adhered to, but also the fundamental reason for our Party to stand firm in all kinds of severe tests. After a hundred years of struggle, the realization of the great rejuvenation of the Chinese nation has shown unprecedented bright prospects. However, it can not be achieved easily by beating drums and gongs. It requires more arduous and arduous efforts. Such efforts are not only reflected in promoting rapid economic development and maintaining long-term social stability, but also in keeping sober and firm in solving the unique problems of the major party at all times. If promoting the rapid and healthy development of economy and society is the hard power that our Party must have to fulfill its original mission, then maintaining a high degree of self-awareness all the time shows the soft power of our Party to fulfill its original mission. It is easy to get at the beginning, but difficult to keep at all times. Adherence to the original mission requires both people's supervision and subjective consciousness. People's supervision can form a strong external force to fulfill the original mission through external forces, while self-revolution can continuously eliminate the virus that erodes the Party's healthy body by strengthening the morale and removing the rotten muscles. The joint efforts of the two are the inevitable requirement of our Party to adhere to its original mission. It is consistent with the nature and purpose of the Party. The question of why is the touchstone to test the nature of a political party and regime. The CPC is the vanguard of the Chinese working class, as well as the vanguard of the Chinese people and the Chinese nation. This attribute means that our Party should always work with the people and strive for the interests of the people. Born and prospered by the people, our Party must take the initiative to accept the people's supervision. This is not only the result of the nature and purpose of our Party, but also the fundamental starting point and foothold of building and strengthening the Party. As early as in the period of the new democratic revolution, Comrade Mao Zedong reminded the whole party to attach importance to the supervision of the people, and repeatedly criticized some comrades for their fear of the people's supervision: "The people complain and say strange things, explaining our policies and work