My natural state is one that's affected by the shortage of dopamine production in my brain. So my natural state is to be halting and at times tremulous and kind of just physically disturbed. I mean, that's my natural state, given the situation in my brain. But I'm always as happy either way. And so when it comes to me, body language lies.

I don't keep up with it all. But Taylor Swift writes songs about everybody she goes out with, right? What a way to build a career.

It is ironic that in the same year we celebrate the 50th anniversary of the discovery of DNA, some would have us ban certain forms of DNA medical research. Restricting medical research has very real human consequences, measured in loss of life and tremendous suffering for patients and their families.

I think there's a God and I know it's not me. I don't have a set of tenets, but I live an ethical life.

To be associated with a film that just flat-out makes people happy is such a blessing and a tremendous privilege, and I'll always be grateful for it. People's eyes light up when they talk about it. I've been in Asia, Africa, Europe and even Bhutan; people know the movie there. It's just an amazing thing.

If I don't get food in my mouth, I'm still happy. If my pants are round my ankles, as long as I don't get arrested for indecent exposure, I'm happy. I'm worried about keeping my hair, not how it's combed.

My age makes me think how valuable life is. How bad is something like Parkinson's in relation to not having life at all?