For it is said that humans are never satisfied, that you give them one thing and they want something more. And this is said in disparagement, whereas it is one of the greatest talents the species has and one that has made it superior to animals that are satisfied with what they have.
--John Steinbeck, The Pearl
I'm not sure where I stand on this. It's true that it forces people to. . .
do stuff and
keep doing stuff, but it also makes happiness into a dangling carrot. Maybe it's not that way for everyone who wants and wants. I guess it depends on what it is you want and how you propose to get it.