I discovered Sir Ken Robinson through my PLN a couple of year ago, and he is one of the people that I most love listening to and learning from. What a mind he has. I would love to hear him at a conference one of these days. He's very eloquent and always makes me think differently about the world.
The video below supports his latest book, The Element, and in it, Robinson explores what element it is that elevates us to greatness. He contends that those who have a passion for our job are the more successful and fulfilled. Our task as educators is to connect our kids to their passions and engage them through those passions. Sounds a lot like a differentiated modern classroom to me--a goal/dream for many of us.