On September 29th, to commemorate the 80th anniversary of Mao Zedong publishing "practice theory" and "contradiction theory" and combine with studying and practicing the important speech spirit of the General Secretary Xi Jinping and CPC’s new ideas of ruling state and dealing with politics, CETC held a Party group study meeting on the topic of philosophy study and practice. Secretary of Party Group of CETC Xiong Qunli held the meeting, Deputy Secretary of Party Group Liu Liehong, Zuo Qunsheng, Party Group Members Hu Aimin, Zhang Dengzhou, Wang Zheng, Wu Manqing, Peng Gang, and Chief Engineer, General Assistant, Deputy Chief Engineer, Deputy Chief Accountant, the department heads in headquarter attended the meeting. The meeting conveyed and studied the central documents’s spirit about philosophy and practice. Party Group Members took the lead in exchanging study experience of the Marxist classic philosophy "practice theory" and "contradiction theory".