Things are generally related, so we should stick to the view of connection. The relationship between "four comprehensiveness" is complementary, mutually reinforcing and complementary.

② The whole and the part are dialectical unity. The "four comprehensive strategies" reflect that the CPC Central Committee should not only establish the overall concept and achieve the optimal goal, but also attach importance to the role of the local, and promote the overall development with local development. (It can also be explained from the perspective of "system optimization")

(3) the principal contradiction is in a dominant position and plays a decisive role in the development of things, which requires us to focus on the principal contradiction. Deepening the reform in an all-round way in the "four comprehensive strategies" is the key measure and fundamental way to realize the strategic goal.