2022年 · 第52卷第05期

It has been the fourth anniversary of Mr. Cheng Zhifan's death, and this year marks the 100th anniversary of his birth. Recalling my life's interaction with Mr. Cheng Zhifan, his magnificent and tall image, sincere and loyal demeanor, has come to mind, which makes people unforgettable for a long time. Mr. Cheng Chi-fan is the elderly person with whom I have spent the most time in my career, and half of my achievements have been achieved with the support of Mr. Cheng Chi-fan.

I learned the honorable name of Professor Cheng Zhifan (1922 – 2018) in 1957, but I didn't meet and meet for the first time until 1973.