My father, who grew up picking olives on the Greek island of Lesbos, was a doctor. So my family expected me to become a physician.

One of my goals is to reinvent philanthropy.

The best way to become a billionaire is to help a billion people.

Super-ambitious goals tend to be unifying and energizing to people; but only if they believe there's a chance of success.

Research shows that the wealthier, more educated, and healthier a nation, the less violence and civil unrest among its populace, and the less likely that unrest will spread across its borders.

When cars have the sensory systems around them, GPS intelligence, they're looking at the world not only in visual spectrum, but infrared, ultraviolet and everything else that's going on and they've got reaction times in microseconds. Not a tenth of a second. They're a hundred thousand times faster.

An expert is someone who can tell you exactly how it can't be done.