Just as Parkinson's isn't a big topic of conversation in my house, neither is my career.

I'm a dad, I'm a husband, I'm an activist, I'm a writer and I'm just a student of the world.

I think I benefited from being equal parts ambitious and curious. And of the two, curiosity has served me best.

There are things I've always wanted to do. Things I may not be able to do, but I never really ruled them out - like running a marathon. It's all a matter of timing for me. I suppose I could probably do it if I planned it out right with medication. I don't set a whole lot of goals. It smacks a little bit of will to me, and I find that will is not the way to go for me.

You know what's cool? My kids think I'm ordinary.

I believe that the majority of times the scale tilts toward the good. It's this amazing thing that rolls on and if we get in the flow of it, that's God. And if we fight it, if we swim the other way, we're swimming away from the purest expression of this life.

I think there's a God and I know it's not me.