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.

I ended up realizing that NASA was unlikely to get me into space, or get me to the moon or beyond, and I needed some other way to drive this.

Technology is a resource-liberating force!

Life on Earth is at an ever-increasing risk of being wiped out by disaster. ... I think the human race doesn't have a future if it doesn't go into space. I therefore want to encourage public interest in space.

Mining asteroids will ultimately benefit humanity on and off the Earth in a multitude of ways.

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.

Every generation feels it has the problems that will destroy it. That's because we can perceive them a long time before we have the ability to fix them.