Enthusiasm versus Talent

I've been wondering about this a bit lately. Is it better to want to do something than to be able to do something? Can you learn to do anything if you want to enough?There is no doubt that both are desirable. Everything gets boring and enthusiasm runs out. By the same token if talent is not developed it is not interesting to watch. What makes you continue to do something until you are good at it? What makes you go on after that? Do you have to be so into it that you won't give up? But then if you can't do it at all, why would you keep going?