 In 2012, he wrote "The Political Legacy of Hu Jintao and Wen Jiabao", criticizing the government's policies.In March 2013, he published an article "China Should Abandon North Korea" in "Financial Times", which caused him to lose his job in the "Study Times".In 2018, he published an article "Seven Tips for Xi Jinping" in "The New York Times", calling on the rulers to make the country democratic.