No, I got a GED in my 30s. My kids know that I never stop learning, and they know I love reading. I have books overflowing everywhere. I am current on today's events and I read the paper every day, and we talk about it, so they see that appetite.

[Constant curiousity leads to happiness:] I wake up curious every day and every day I'm surprised by something. And if I can just recognize that surprise every day and say, 'Oh, that's a new thing, that's a new gift that I got today that I didn't even know about yesterday,' it keeps me going. It keeps me more than going. It keeps me enthusiastic and grateful!

I'm also very proud to be a part of a trilogy of films that, if they do nothing else, allow people to check their problems at the door, sit down and have a good time.

I didn't just want to be a poster boy and sign on to publicize somebody else's method of operations. If I was going to put myself out there, I wanted to make sure that it was to an end. So I got involved with this congressional hearing about Parkinson's being underfunded.

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.

'Why do you think it is...', I asked Dr. Cook ... 'that brain surgery, above all else-even rocket science-gets singled out as the most challenging of human feats, the one demanding the utmost of human intelligence?' [Dr. Cook answered,] 'No margin for error.'

In fact, Parkinson's has made me a better person. A better husband, father and overall human being.