Anthony D. Ravenscroft said this quote
“ ...we are taught to put fun and serious pursuits on a continuum as opposed extremes, when this dichotomy is entirely false, made even worse when we act as though we can instantly exchange one for the other...Exerting yourself at a task that is serious and rewarding can still be quite fun, but doing something fun because you have a neurotic need to pack your life full of un is pretty much a guarantee that any long-term benefits you derive will be entirely happenstance. ”