The liberal views of Wang Yangming were opposed by the Censorate and by the Donglin Academy, re-established in 1604. These conservatives wanted a revival of orthodox Confucian ethics. Conservatives such as Gu Xiancheng (1550–1612) argued against Wang's idea of innate moral knowledge, stating that this was simply a legitimization for unscrupulous behavior such as greedy pursuits and personal gain. These two strands of Confucian thought, hardened by Chinese scholars' notions of obligation towards their mentors, developed into pervasive factionalism among the ministers of state, who used any opportunity to impeach members of the other faction from court.