1 What Taizong of the Tang Dynasty said, this means that the monarch is like a boat, and the people are like water. Water can make the boat float on the water, or it can overturn the boat. For this reason, Taizong used it in the early period. The main national policy is to appease the people, attach importance to agriculture, implement the land equalization system, rent regulations and lightly shake the auxiliary system

Build water conservancy projects, set up warehouses, provide disaster relief and prepare for famines. Due to the transitional war of Emperor Yang of the Sui Dynasty, China's population was in short supply Taizong implemented incentives for marriage and increased the population. Taizong also reformed official positions and established three provinces and six ministries in order to select talents and improve the imperial examination. First, Emperor Taizong of the Tang Dynasty insisted on measuring materials and instruments and employing people based on their strengths. He even appoints people who were once his enemies. This approach of selecting people based on their talents gradually eased the conflicts within the ruling class.

Second, pay special attention to selecting talents from ordinary landlords and civilians, such as Qin Shubao. Due to the eclectic selection of talents, the Zhenguan Dynasty was filled with talents.

Third, we attach great importance to the appointment of local officials and believe that "the foundation of governing people is not to attach importance to the governor."