Ninth (June Dingmao -), July 4, 1987, Deng Xiaoping on two basic points. Since,

1987 (history cn) Deng Xiaoping met with Bangladesh President Ershad proposed the concept of two basic points:
the Third Plenary Session of the CPC, China Communist Party developed a route of building socialism with Chinese characteristics.
this route with two basic points: First, adhere to the Four Cardinal Principles, First, persist in reform and opening up, enliven. Adhere to the Four Cardinal Principles and the reform and opening up, invigorate the general policy of the socialist modernization policy. The two basic points is the entire contents of the Chinese Communist Party's Third Plenary Session of the Eleventh Central Committee line.