My happiness grows in direct proportion to my acceptance, and in inverse proportion to my expectations.

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.

[My son] will have a fairly stable future. Not one where the schoolyard talk is whose father grossed $8 million on his last picture.

I like to encourage people to realize that any action is a good action if it's proactive and there is positive intent behind it.

Teenagers blithely skip off to uncertain futures, while their parents sit weeping curbside in the Volvo, because the adolescent brain isn't yet formed enough to recognize and evaluate risk.

I can't always control my body the way I want to, and I can't control when I feel good or when I don't. I can control how clear my mind is. And I can control how willing I am to step up if somebody needs me.

You've probably read in People that I'm a nice guy - but when the doctor first told me I had Parkinson's, I wanted to kill him.