sentences:  After working at the "People's daily" for over three decades, Wang was expelled from the party in 1987 during the Anti-Bourgeois Liberalization Campaign, largely due to his long-standing vocal advocacy of Marxist humanism that led to the Anti-Spiritual Pollution Campaign in 1983.After his exile from the party, he went to United States as a visiting scholar to continue his research.Wang was known as a major exponent of Marxist humanism and of Chinese liberalism in the second half on his life.