贊曰：周室既壞，至春秋末，諸侯秏盡，而炎黃唐虞之苗裔尚猶頗有存者。 The appraisal says: After the Zhou house had collapsed, by the end of the Spring and Autumn period the feudal lords were largely exhausted, yet descendants of Yandi, Huangdi, Tang, and Yu still survived in considerable numbers.