of competence, with the understanding that as long as they observed the Four Cardinal Principles they would be permitted to conduct their research with minimal bureaucratic interference. This was accomplished more easily in the natural sciences, which are generally recognized as apolitical, than in the social sciences, humanities, and the arts. The first serious challenge to the more tolerant policy toward intellectuals came in 1980, as conservative ideologues in the military and the party stepped up their calls to combat "bourgeois liberalization," a loosely defined appellation for any writing or activity believed to stretch the limits of the 'four cardinal principles'. By early 1981 opposition to "bourgeois liberalization" was focused on Bai Hua, a writer with the Political Department of what was then the Wuhan Military Region. Bai had long been a strong advocate for relaxation of cultural and social policy, but what especially alarmed the guardians of cultural orthodoxy was his screenplay "Bitter Love," which depicted the frustrated patriotism of an old painter who faces misunderstanding and ill-treatment when he returns to China from the United States. When the screenplay first appeared in a nationally circulated literary magazine in the fall of 1979, it caused little stir. The motion picture version however, which was shown to selected officials, drew strong censure. A commentary in the April 18, 1981, issue of Jiefangjun Bao (Liberation Army Daily) accused Bai Hua of violating the four cardinal principles and described the screenplay as an example of "bourgeois liberalism." The commentary was reprinted in the next month's issue of Jiefangjun Wenyi (Liberation Army Literature and Art), along with other articles critical of "Bitter Love." Over the next few months the criticism was taken up by most civilian newspapers, and acting minister of culture, Zhou Weizhi, singled out "Bitter Love" for attack in a speech delivered to the Twentieth Session of the Fifth National People's Congress Standing Committee in September. Finally, Bai Hua yielded to the ostracism and wrote a letter of self-criticism addressed to Jiefangjun Bao and Wenyibao (Literary Gazette), in which he apologized for a "lack of balance" in "Bitter Love" and for failing to recognize the power of the party and the people to overcome obstacles in Chinese society. Bai Hua was out of public view for the next year but remained active, writing four short stories in the period. In January 1983, he was invited by the Ministry of Culture to