For the lack of something

I've been thinking about life and all. You know, just what it all means, what to do with the old life dealy, that sort of thing. Pretty much stuck on how selfish I seem to be. Is everyone just selfish? Where is the line between selfishness and personal success? What is success? Family, money, friends, giving something back to the whole? I guess. How to be revolutionary when it has all been done already. Some futuristic world we live in.