Listen more than you talk. Nobody learned anything by hearing themselves speak.

When you are starting a business or going down any challenging endeavor, you are bound to encounter challenges. You are going to hit many roadblocks and obstacles. These are obstacles that would make any sane person want to throw in the towel and quit. If you want your business to succeed, you can’t do that (duh).

We have a business that some people feel pollutes, and I happen to agree with them. ... And so on the basis of trying to do good and, you know, hopefully turn a profit, what we did was we pledged that we'd put all the profits from our airline business into trying to develop clean fuels.

I'm not the sort of person who fears failure.

As a leader of people, you have to be a great listener, a great motivator, be very good at praising and bringing out the best in people.

To launch a business means successfully solving problems. Solving problems means listening.

We'll not be sending anyone into space before it is safe and the vehicle is well and truly tested.