During the process of correcting the wrongdoings of the past, some people attempted to negate the leadership of the Communist Party and the socialist system. At a meeting to discuss theoretical work on March 30, 1979, Deng Xiaoping emphasized the importance of the Four Cardinal Principles of adhering to the socialist road, the people�s democratic dictatorship, the leadership of the Communist Party and Marxism-Leninism and Mao Zedong Thought.