贊曰：春秋晉史蔡墨有言，陶唐氏既衰，其後有劉累，學擾龍，事孔甲，范氏其後也。 The appraisal says: Cai Mo, the Jin historian of the Spring and Autumn period, once said that after the House of Taotang declined, there was Liu Lei, who studied dragon-taming and served Kong Jia, and that the House of Fan descended from him.