On this day 46 years ago, on March 30, 1979 (March 3, 1979 in the lunar calendar), Deng Xiaoping put forward the Four Cardinal Principles. Deng Xiaoping put forward the Four Cardinal Principles. On March 30, 1979, Deng Xiaoping was entrusted by the Central Committee of the Communist Party of China and put forward the Four Cardinal Principles at a theoretical retreat held by the Central Committee. That is, to achieve the four modernizations in China, we must adhere to the socialist road ideologically and politically, adhere to the dictatorship of the proletariat (that is, the people's democratic dictatorship), adhere to the leadership of the Communist Party, adhere to Marxism-Leninism, and Mao Zedong Thought. The Four Cardinal Principles are an interconnected whole, and their core is to adhere to the leadership of the Communist Party. It stipulates the social nature of our country, the state system, the leading position of the party, and the guiding ideology for the cause of revolution and construction. It is the common political basis for the unity of the whole party and the people of all ethnic groups in the country, and it is also the fundamental guarantee for the cause of socialist modernization. The four basic principles are the foundation of the country, and they and the reform and opening up policy constitute the two basic points of the party's basic line.