I like taking pictures. Here are the ones I like to share with you.

Japan Oct. 1991, Scotland, St. Andrews, July 1992  Journey to India, July 5-21, 1996,  Singapore 1993, UK-Birmingham-London 1993 Italy July 28-Aug. 6, 2003
IMO '98  Behind the scene ATCM 97 Penang 99 Guangzhou HK 00 Chiang Mai Dec. 16-21, 2000 Melaka Dec. 16-22, 2002 Hsinchu Dec. 25, 2002
Summer Session, 1999, 2000, 2001
Pui Ching reunion, Dec. 1998 BSFS reunion
Faculty and Graduate Students, 1993, May 8,  May 23, 2000, Dec. 23, 2002, June 9, 2003,Chang June 27, 2002, retirement June 20, 2003
Math Alumni Association, April 30, 2000  Graduation Dinner June 2, 2002
Undergraduate Students, Dec. 7, 2000, April 29, 2002  June 17, 2002
UCSB, July 19, 2000
Geometeric Construction, 2000 , 2001,  2002   Mathematical Experiments  2001, 2002 2003  Math Appreciation 2001 Dynamic Geometry 2002
Calculus, 2000
Providence University  Nov. 23, 2000,  March 7, 2002   NCU Dec. 26, 2001
Math Building, Dec. 15, 2000  Gen-Ed June 22, 2002 
Math Camp, Feb. 3, 2001, Feb. 2, 2002
NTSEC, Sun Moon Lake, Aug. 1, 2000   Ming Der Resevoir, August 11, 2000  April 27,  June 10, Nov 10, 2001
ISEF 2001 San Jose, May 7 [1], May 7 [2], May 9, May 13, May 22
ISEF 2002 Louisville, May 11-15
Cabri World 2001, Montreal, June 15, June 15 evening, June 16, June 19
Wu Feng College, June 1, 2001 NSYSU March 29, 2001 Chung Hua U. June 6, 2002 Soochow U. 1-15-1999 THU Oct. 22, 2001 Hong Kong PolyU 1993 Taitung Dec. 8-9, 2002 Chien Kuo Dec. 13, 2002, Jan. 21, 2003, Su Der Jan. 18, 2003, Chiayi Jan. 16, 2003 Hualian Oct. 20, 2000 Mar. 26, 2003
HS-NTNU June 7, 1999 Hsuan Chuang Oct. 29, 2003 Ching Mei March 6, 2003 Tsai Hsing April 4, 2003 HK Jan. 20, 2002 Beipu July 17, 2004 Kwan Wu June 26, 2004 HK Wedding Nov. 2003