One of the most difficult things for people who have been successful in sports is adapting to the daily world where you can't get an answer from someone until 5 o'clock tomorrow. There is always an excuse. Living 40 or 50 years like that doesn't get too exciting after a while.
My being a teacher had a decisive influence on making language and systems as simple as possible so that in my teaching I could concentrate on the essential issues of programming rather than on details of language and notation.
