Oh, I understand that there is always more to learn, and that it is a good day when you learn something, but I'm more talking about more practically targetting your ambition, because you'll be learning at your job no matter what. And as for accomplishing things, I guess what I meant is that accomplishment now will take more and more time. Which involves a lot of risk, and choosing one path to spend all your time. So you have to pick and choose (as Robbie said, you can't be president and cure cancer ;) )

At some point I'll probably take classes again, maybe for an MBA, maybe for environmental science, but it's mostly practical ambition now, as I said. Sometimes I miss that idea of the bright, wide open future (maybe that's what I'm talking about), but at some point you have to pick a path and stick with it, for better or worse - or else you're not really going to get very far. Unless you're a genius with never-ending energy or lucky ;)