1978年12月18日至22日,中国共产党十一届三中全会在北京召开。这个会议,从开幕到闭幕,仅用了5天的时间,但是它对中国当代历史的影响却远远超出了时间的范畴。这次会议坚决批判了“两个凡是”的错误方针,高度评价了关于实践是检验真理唯一标准的讨论,确定了“解放思想、开动脑筋 From December 18 to December 22, 1978, the Third Plenary Session of the Eleventh Central Committee of the Chinese Communist Party convened in Beijing. It took only 5 days from the opening to the closing of this conference, but its impact on the contemporary history of China goes far beyond the time scale. This meeting resolutely criticized the erroneous policy of “two generalities,” spoke highly of the discussion that practice is the sole criterion for testing truth, and determined that “emancipating the mind and opening up their own brains”