在社会政治领域，他抨击了吏治腐败、贫富不均等现象，并提出正君心、用贤臣、复井田与复封建等改良方案，使理学又焕发出新的生机。
He gave reform proposal for the emperor to give just sovereignty , to employ upright ministers , to regain farmland and to strengthen feudal system , which brought vigor to Confucian theory .
复井田