While we're throwing around our favorite TED talks, here's the meat of my favorite in animated form.
Drive: The surprising truth about what motivates us
Looking back over my jobs, hobbies, life in general, yeah, this hits hard. And yes, they found some surprising results.
EDIT: I was wrong. Not a TED talk. Watch it anyway and learn!
This is not that discussion, even remotely. Try to stay on topic.