主题：随便侃侃。 -- 解甲

He engaged in many protests of the existing economic system, and engaged in much activism after the Tiananmen Square protests of 1989.

Li was arrested after advocating free market principles in 1990, and made a vast switch to become a Marxist after extensive reading of the works of Karl Marx, Mao Zedong, and others while a political prisoner until his release in 1992.

Li spent the next two years traveling in China, debating with remaining liberal dissident activists and conducting his own research into political,economic, and social development in modern China, using fake identification to visit provincial and city libraries. His view became one opposed to the mainstream, being that Mao Zedong's influence was a "revolutionary legacy rather than a historical burden for future socialist revolutionaries.

几个关键点：

1、李教授是8x8以后才开始活动的；

2、李教授被捕是因为鼓吹自由经济；

3、李教授因为在狱中大量阅读马毛著作，made a vast switch to become a Marxist

4、Mao Zedong's influence was a "revolutionary legacy rather than a historical burden for future socialist revolutionaries" ----90年代敢公开持这种观点的人实在是不太多。