年前,接杨先生大函,嘱我为其新著《先秦民族与文化》作序。这个嘱托,一方面使我感到高兴,同时也感到犯难。高兴的是,先秦民族与文化应予足够重视,但目前出书无多。杨先生的新著按地区分别对先秦民族与文化做出了有系统的研究与论证,撰成了长达62余万字的鸿篇巨著。这不能不说是中国民族史与先秦史研究中一 Years ago, Mr. Yang was given a big letter and asked me to preface to his new book Pre-Qin Ethnicity and Culture. This exhortation, while making me feel happy, but also feel guilty. Happily, pre-Qin peoples and cultures should pay enough attention to it, but there are not many books published at present. Mr. Yang’s new book has systematically studied and demonstrated the pre-Qin ethnic group and culture by region, and has compiled a masterpiece of masterpieces of more than 62,000 words. This can not but say that it is one of the studies on Chinese national history and pre-Qin history