As with any turning point or instance when a new road is chosen and an old one forsaken, there are consequences.

People want leadership, Mr. President, and in the absence of genuine leadership, they'll listen to anyone who steps up to the microphone. They want leadership. They're so thirsty for it they'll crawl through the desert toward a mirage, and when they discover there's no water, they'll drink the sand.

Ironic that in order to do my life's work, I had to quit my day job.

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.

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

I don't burden myself too much with others' expectations - or even my own expectations. I think your happiness grows in direct proportion to your acceptance, and in inverse proportion to your expectations. It's just a matter of putting one foot in front of the other - or doing the next right thing, so to speak.

Almost instantly [after my announcement of Parkinson's], I saw the first couple of days the coverage was about, you know, "Fox's Parkinson's, blah, blah, blah." Then, two days after that, I saw the coverage turn. It started to become, "Can young people get Parkinson's?" All of a sudden, the conversation turned to become about that. And that was one of the first eye-opening things.