The country is huge and the responsibility for it is heavy. A huge country cannot be evenly governed by the emperor alone; the responsibility is too great for one man. Thus, the emperor should give land to relatives to guard the outlying prefectures [areas]. Whether the country is at peace or in danger, they cooperate; whether the country is thriving or declining, they work together with one heart.
What advice does Taizong give on the best way to rule?