Nie Yuanzi 聂元梓 is a Chinese academic who taught philosophy at Peking University

Peking University

Peking University , colloquially known in Chinese as Beida , is a major research university located in Beijing, China, and a member of the C9 League. It is the first established modern national university of China. It was founded as Imperial University of Peking in 1898 as a replacement of the...

. She is primarily known for her May 25, 1966 "Big-character poster

Big-character poster

Big-character posters are handwritten, wall-mounted posters using large-sized Chinese characters, used as a means of protest, propaganda, and popular communication. They have been used in China since imperial times, but became more common when literacy rates rose after the 1911 revolution...

" criticizing Peking University

Peking University

Peking University , colloquially known in Chinese as Beida , is a major research university located in Beijing, China, and a member of the C9 League. It is the first established modern national university of China. It was founded as Imperial University of Peking in 1898 as a replacement of the...

 for being controlled by the "bourgeoise." This was a factor in the Cultural Revolution

Cultural Revolution

The Great Proletarian Cultural Revolution, commonly known as the Cultural Revolution , was a socio-political movement that took place in the People's Republic of China from 1966 through 1976...

. She initially supported the persecution of other academics, but in time soured on the results of the Cultural Revolution and tried to quit her position in the Red Guards

Red Guards (China)

Red Guards were a mass movement of civilians, mostly students and other young people in the People's Republic of China , who were mobilized by Mao Zedong in 1966 and 1967, during the Cultural Revolution.-Origins:...

. In 1968 she was detained and she would remain in prison for 18 years. She is now critical of the Chinese regime and has expressed a desire for greater freedom of opinion.