I was lucky enough to have spent most of my career under Bob's watchful eye.  I was his partner in a "90's" tournament where the combined age had to equal 90 years+. As I was 25-ish then, I was a good fit since Bob was a tad past 70.  Through this, he became a student (not that he needed it!) and more importantly a friend.  Decades later, I only hope to have a fraction of Bob's impact.