《旧唐书·本纪·卷二十》
因而在泰山祭天，在梁父祭地，约数得出的就有七十二个君王，于是知道天下应是属于大公而不是一姓所独有。
故封泰山，禅梁父，略可道者七十二君，则知天下至公，非一姓独有。
Therefore, there have been seventy-two kings who have offered sacrifices to heaven in Mount Tai and to earth in Liangfu, so I know that the world should belong to the public rather than be owned by a single family.