"But the key to our marriage is the capacity to give each other a break. And to realize that it's not how our similarities work together; it's how our differences work together."

"If you have doubts about someone, lay on a couple of jokes. If he doesn't find anything funny, your radar should be screaming. Then I would say be patient with people who are negative, because they're really having a hard time."

"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."

"Acceptance doesn't mean resignation; it means understanding that something is what it is and that there's got to be a way through it."

"General intelligence in machines will the spark that ignites the next industrial revolution, demanding a new social contract for the digital age."

"I would like to spend the whole of my life traveling, if I could anywhere borrow another life to spend at home."

"No matter how carefully you plan your goals they will never be more than pipe dreams unless you pursue them with gusto."

"Name the greatest of all the inventors: Accident."