《淮南子·齐俗训》
所以尧帝治理天下，是任命舜为司徒，主管教化；任命契为司马，主管军务；任命禹为司空，主管工程建筑；任命后稷为大田，主管农业；任命奚仲为工师，掌管百工。
故尧之治天下也，舜为司徒，契为司马，禹为司空，后稷为大田师，奚仲为工。
Therefore, Emperor Yao governed the world by appointing Shun as Situ, in charge of education; appointing Qi as Sima, in charge of military affairs; appointing Yu as Sikong, in charge of engineering and construction; appointing Houji as Datong, in charge of agriculture; and appointing Xizhong as a craftsman. Shi, in charge of the hundreds of workers.