Life is hard, but he would rather endure suffering than work for enemies and puppets. Clear. Showed noble national integrity. After liberation, I loved the * * * production party, worked hard, fulfilled my duties, and was loyal to education. During the Cultural Revolution, their physical and mental preparations were destroyed, but they still persisted in their studies. After the downfall of the Gang of Four, he was full of energy, regardless of illness, engaged in the research and work of ethnic migration, and selected two selected papers, History of China and World History. 1980 died of heart failure in Beijing on February 29th.