《宋书·志·卷十六》
三公的职责是掌管天地的，实际上是掌管人民和万物，国家的大事，在这里议定。
夫三公职典天地，实掌民物，国之大事取议于此。
The duty of the Three Dukes was to manage Heaven and Earth, in the practical sense, they managed the people and all things, and the nation's major events were decided here.