Many things are improbable, only a few are impossible.

My opinion is it's a bridge too far to go to fully autonomous cars.

I think it's very important to have a feedback loop, where you're constantly thinking about what you've done and how you could be doing it better.

People work better when they know what the goal is and why. It is important that people look forward to coming to work in the morning and enjoy working.

It's important that we attempt to extend life beyond Earth now. It is the first time in the four billion-year history of Earth that it's been possible, and that window could be open for a long time - hopefully it is - or it could be open for a short time. We should err on the side of caution and do something now.

I think we are at the dawn of a new era in commercial space exploration.

Entrepreneurship is like eating glass and walking on hot coals at the same time