I mean, I enjoy my work as an actor. But to make a difference in people's lives through advocacy and through supporting research - that's the kind of privilege that few people will get, and it's certainly bigger than being on TV every Thursday for half an hour.

As much as Parkinson's is about movement, the end stage is being frozen. So the more I let that happen, the more I'm gonna be stuck within that and unable to reverse it.

When I was younger, I was always described as happy-go-lucky. Then I drank and I partied - did all that stuff that might tell you maybe there was a little bit of untruth in that [description]. Now, the surprising thing is that when I say stuff, I actually mean it. I don't have to do the work of trying to formulate my point of view. It just is. And it's surprising how much I love life. I just really have a good time.

So what I say about Tracy is this: Tracy's big challenge is not having a Parkinson's patient for a husband. It's having me for a husband. I happen to be a Parkinson's patient.

One's dignity may be assaulted, vandalized and cruelly mocked, but cannot be taken away unless it is surrendered.

I'm going to marry a Jewish woman because I like the idea of getting up Sunday morning and going to the deli.

Humility is always a good thing. It's always a good thing to be humbled by circumstances so you can then come from a sincere place to try to deal with them.