True for some, not for others, GUEST--and, from what I remember, Vincent was the one who did the pushing--he was aware that he had a very limited amount of time to do the things that he wanted to do, and he pushed himself. You couldn't push anyone hard enough to turn out the amount of work he produced, and brilliant work at that.

Then you've got others--like Ellington, Quincy Jones, Chet Atkins, who do great work, both artistically and business wise, for years and and years. Or Picasso, if we're talking painters(which, when you think about it, is kind outside the scope)--