We all need to make money. But money isn't why we do it. And it turns out that how we do it isn't really motivating either. It's the WHY that is so important and makes all the difference in ourselves and our work. Don't take my word for it, here's the man with the research.
Most everyone my age is working in what Dan Pink calls the "knowledge economy." We work with our brains not our body. Though the type of work has changed profoundly, the business hasn't. One big part of that is how we're motivated to work. Enjoy this video about why rewards & punishments don't motivate thinkers.