d) All of the above

"If the world were merely seductive, that would be easy. If it were merely challenging, that would be no problem. But I arise in the morning torn between a desire to improve (or save) the world and a desire to enjoy (or savor) the world. This makes it hard to plan the day." - E.B. White

I've been circling ineloquently around this very thought for some years now, and after much unnecessary dialectical thinking and stress paralysis (do one, do the other, freak out and end up doing neither), I have, as always, settled on the most optimistic answer:

Do both.