新近拜读了江林昌教授的大作《夏商周文明新探》（浙江人民出版社，2001年版），收获颇多。其中一个重要命题“中国古代也有两河文明”引起了笔者的深深思索。著者认为黄河文明是中华文明的主流，而长江文明是其补充。笔者不禁想到“儒道互补是两千年来中国思想一条基本线索” Recently read Professor Jiang Linchang’s masterpiece “New Exploration of Xia and Shang Dynasties Civilization” (Zhejiang People’s Publishing House, 2001 edition), a lot of gains. One of the important propositions, “There are two civilizations in ancient China,” aroused the author’s deep thinking. Author believes that the Yellow River civilization is the mainstream of Chinese civilization, and the Yangtze River civilization is its complement. I can not help but think of “complementarity of Confucianism and Taoism is a basic clue of Chinese thought in the past two thousand years”