When the tanks rolled in to Tiananmen Square on June 4, 1989, 22-year-old Diane Wei Liang was one of thousands of students from Beijing University involved in the peaceful demonstrations. Liang is a graduate of Peking University. She has a Ph.D. in business administration from Carnegie Mellon University and was a professor of business in the U.S. and the U.K. for more than ten years.