"Correctly deal with both historical periods before and after reform and opening-up" is a part of Comrade Xi Jinping's speech at the Seminar of the Members and Alternate Members of the Newly-elected Central Committee of the CPC for Implementing the Guiding Principles of the Party's 18th National Congress. He noted that the socialist cause under the leadership of the CPC is divided into two parts, before and after reform and opening-up. The two periods are mutually connected and have major differences, but essentially they are both the exploration in practice of our Party leading the people in socialist construction. He stressed that the historical period before reform and opening-up cannot be overthrown by the one after reform and opening-up, and vice versa. The socialist practice and exploration before reform and opening-up has created conditions for that after the reform and opening-up, and the socialist practice and exploration after the reform and opening-up is the inheritance, reform and development of that of the previous period."