I'm hungry for knowledge. The whole thing is to learn every day to get brighter and brighter. That's what this world is about. You look at someone like Gandhi and he glowed. Martin Luther King glowed. Muhammad Ali glows. I think that's from being bright all the time and trying to be brighter.
If you scratch below the surface and ask what really makes me tick it's the liberalism of trying to promote freedom and opportunity. Promoting social mobility is one of the keys to that.