I was listening to a the Agile Toolkit Podcast where Dave Thomas of Pragmatic Programmers was interviewed. The interview goes through various topics from Erlang, monoculture, passion, and more. During the conversation, Dave makes this great quote:

Look at the enthusiasm with which kids do things and say to yourself, well I was once like that. Why can’t I be like that again, you know? And I think that’s the thing to look for; is it’s such a shame that you get to the point where you lose your naiveté, where you lose your enthusiasm, you lose your ability to be passionate about stuff because you’re just too busy. And the reality is that you only get one shot at it, you know? So, why not explore and make your life a bit more exciting. I’m really big now on this idea that developers have to find – everybody – has to find things that they’re passionate about and just do it.