Sad news indeed. Felix was my PhD mentor (together with Yosef Gilboa, who alas is also no longer with us - another bright light extinguished before his time). He was one of the few true old-school structural biologists; someone who was not afraid to ask the tough questions and who had the persistence and the strength of will to work hard (and to push others) until answers emerged. He was very fond of the maxim 'extraordinary results require extraordinary proof' (which at the time was something of a challenge for me as I was young and impatient) -- as time passes, I see the wisdom of this approach come true over and over again. As opposed to the more standard lecturing style Felix always taught his students to learn - to earn the knowledge through one's own work - and because of this he was a fantastic teacher and a true master in his field.
Even though Felix is gone, the reflections of his light in other people's lives shall live on. He was, and forever remains, my friend. I will miss him dearly. Artem
