Zhang Zai's thinking is extraordinary, and he attaches importance to practice and "external king". He attaches great importance to Zhou Li, and the dimension of his concern may be different from Wang Anshi's, but his position of advocating practical use is completely consistent. He advocated Taoism in Guanzhong with "practical ethics", and even wanted to combine Zhou Li's "minefield" discussion with his own ideas to raise money to buy land in Guanzhong and put it into practice.
His four words in Hengqu "establish heaven and earth, establish life for the people, link the past with the future, and open a peaceful future for generations." The main point is to restore the etiquette and peace of the Zhou Dynasty, but the officials were not smooth, and their talents and ambitions could not be displayed. They can only give lectures and write books, and establish the Taoist school.