A Cherished Memory of Prof. Da Ruan

Abstract

I came to know Da fifteen years ago in a very beautiful city, Prague when we both attended the 7th International Fuzzy Systems Association World Congress (IFSA 1997). It was my great pleasure to meet some Chinese colleagues, especially Da, in Prague as it was still relatively rare to see Chinese academics in Europe back then. At our first meeting, Da impressed me with his sunny and pleasant smile. After chatting with him, I was even more impressed with his kindness and generosity. Da graciously offered me a ride for sightseeing around Prague as he drove to the conference from Belgium. After learning that I was a doctoral student of Professor Hideo Tanaka, he commented that they share a great colleague and good friend, Professor Zimmermann and we belong to an extended academic family. He went even further to promise assistance whenever such a need arises. From then on, I always feel and cherish his brotherly care and support.