Literature Reference: 文王在上，于昭于天。周虽旧邦，其命维新。有周不显，帝命不时。文王陟降，在帝左右。亹亹文王，令闻不已。陈锡哉周，侯文王孙子。文王孙子，本支百世，凡周之士，不显亦世。世之不显，厥犹翼翼。思皇多士，生此王国。王国克生，维周之桢。济济多士，文王以宁。—— 《诗经·大雅·文王》 King Wen is on high, shining in the heavens. Though Zhou is an old state, its mandate is renewed. The glory of Zhou is not apparent, the decree of the emperor is not timely. King Wen ascends and descends, on the left and right of the emperor. Diligent King Wen, his fame never ceases. He bestowed blessings upon Zhou, and the descendants of King Wen became nobles. The descendants of King Wen, the root and branches, lasted for a hundred generations. All the scholars of Zhou, their glory also lasted for generations. The glory of the generations, it was still cautious. The emperor thought of the many scholars, born in this kingdom. The kingdom could produce them, the pillars of Zhou. The many scholars gathered, King Wen brought peace to them. Source from 'The Book of Songs·Da Ya·King Wen'.