中唐时期,学术思想活跃,思辨深刻。这种局面既是盛唐昂扬的时代精神的余绪,又是士大夫们面对由盛转衰的社会所作出的无奈选择和深刻思考。疑古思潮的兴起,就是这一时代的产物。柳宗元是中唐时期疑古思潮中的代表人物。他以过人的学识,将中唐疑古思潮推向高峰。他的疑古思想中所蕴涵的理性精神和批判锋芒,不仅直接开宋人疑古辨伪之先风,还使现代史学中的古史辨派产生了强烈的共鸣。中唐时期疑古思潮及柳宗元的疑古思想中有关古史古书的辨伪,无论是方法还是成果,都对后世辨伪学的发展产生了深刻影响,从而使怀疑精神成为中国学术研究中的重要传统,以至在20世纪以来的中国学术界大放异彩。 During the Middle Tang Dynasty, academic thought was active and speculation was profound. This situation is both a reminder of the spirited times of the Tang Dynasty and a helpless choice and profound thinking of the scholar-lawyers in the face of a society that is experiencing the decline and prosperity. The rise of the trend of doubt in ancient times is the product of this era. Liu Zongyuan was the representative figure in the suspicion of ancient times in the Middle Tang Dynasty. With extraordinary knowledge, he pushed the suspicion trend in the Middle Tang Dynasty to the peak. The rational spirit and critical edge implied in his suspicion of ancient times not only set the precedent for the detection of the ancient suspicions of ancient times by the Song dynasty, but also resonated strongly with the ancient records of the modern history. In the mid-Tang Dynasty, the trend of doubts on ancient ideas and the thinking of Liu Zong-yuan on the ancient history of ancient books on the identification of pseudo-ancient books, both methods and achievements, have a profound impact on the development of later generations of pseudo-science, so that the spirit of suspicion in Chinese academic research Important traditions, and even the Chinese academics since the 20th century.