I would say luck is necessary for fame and fortune, but not necessarily for success. Take for example someone who is an incredibly gifted musician, artist or w

I would say luck is necessary for fame and fortune, but not necessarily for success. Take for example someone who is an incredibly gifted musician, artist or writer. If that person doesn't put any work into self promotion they won't be rich or famous, but I would argue they would still be extremely successful. In fact, many of the people we today consider the greatest artists in history toiled in relative obscurity during their lifetimes.