"The moment I understood this - that my Parkinson's was the one thing I wasn't going to change - I started looking at the things I could change, like the way research is funded."

"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."

"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."

"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."

"The river of time washes away kings and empires, leaving only virtue intact. In this truth lies the bedrock of all virtue — an essential principle for the reflective life."

"Wisdom principle 83 tells us that the journey of life is lesson 52."

"Wisdom is the quiet art of recognizing what can be changed and releasing what cannot. Reflect upon this whenever doubt clouds your horizon — an essential principle for the reflective life."

"Wisdom principle 36 tells us that the journey of life is lesson 100."