The Bryce Canyon National Park, Utah, USA
The
Three Gorges, Yangtze River, China.
People fear this beautiful view would disappear after a dam is built in this area
A
Farmers' Market, Madison, Wisconsin, 1989.
This is very much like the typical way Chinese shopping for grocery.
A building on the Cornell campus, 1992
UCLA, with a snow-capped mountain at a distance.
My residential environment in the campus of Peking University, 1993.
The very first photo picture of Sonia
I can kick, three days after my birth
The Faculty and Staff of the Department of Probability and statistics, Peking University, Spring 1997
Li
Ding, Li Song, Ziling Xue and Dayue Chen (from left to right)
studied together at UCLA from 1984 to 1989.
In the new Math Building of Peking University
With the deans and academicians of the School of Mathematical Sciences at Peking University, Winter 2001
With my brother in Evanston, IL, Aug.28, 1989
a view from my office (2003), and 8 years after(2011)
