As we drifted to earth I sat up on the glass roof of the capsule, watching the beauty of the golden dawn as it broke over the desert. This was a day I never thought I'd see and the rising sun and growing warmth of the day seemed very precious. It made me aware that hard-won things are more valuable than those that come too easily. It reminded me to always enjoy the moment.

I've had many challenges - every entrepreneur does - it's the nature of the beast.

Lead by listening - to be a good leader you have to be a great listener.

Sometimes I do wake up in the mornings and feel like I've just had the most incredible dream. I've just dreamt my life

We've all got to do everything we can to avoid conflicts.

I enjoy the company of other people. That's where I get most of my satisfaction from

Whether we're fighting climate change or going to space, everything is moved forward by computers, and we don't have enough people who can code