在中国国家图书馆浩如烟海的古籍善本中 ,最璀璨夺目者当推“国家图书馆四大镇馆之宝”———敦煌遗书、《赵城金藏》、《永乐大典》、《四库全书》。敦煌遗书是研究中古时期中国、中亚、东亚、南亚的历史学、考古学、宗教学、人类学、社会学、语言学、文学史、艺术史、科技史 Among the rare books rare in the Chinese National Library, the most dazzling of these ancient books are the treasures of the four great museums in the National Library --- the Dunhuang suicide note, the Zhao City Jinzha, the Yongle Ceremony, and the Sikuquanshu. The suicide note is a study of history, archeology, religious studies, anthropology, sociology, linguistics, literary history, art history, history of science and technology in China, Central Asia, East Asia and South Asia