I'm not saying we don't have our set of problems - climate crisis, species extinction, water and energy shortage - we surely do. But ultimately we knock them down.

It's sad that the U.S. government doesn't fund risky research anymore.

Find that thing that you are passionate about, that you will do day or night whether someone pays you or not...because if you have that, you will have gold.

A Masai warrior on a cellphone in the middle of Kenya has better mobile comm than President Reagan did 25 years ago.

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.

The meek shall inherit the earth. The rest of us are going to the stars.

I think people are dreaming big because they have the tools to dream big. I hope that people are dreaming big because it makes them feel good about their lives.