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

The best way forward is to give more people everywhere greater power to build their own destinies.

I don't live my life thinking about "if only." I just try to think positively about the future. We'll never know for certain what would have happened if we'd gone to Iraq. The important thing is that we've got to do everything we can to prevent other wars.

I make up my mind about whether I can trust someone within 60 seconds of meeting them

And [we hope to sell] the clean fuels to other airlines. I mean, the exciting thing about the breakthrough with clean fuels for the airline industry is there's only 1,700 pumps in the world that fill up the airlines.

We should focus on what people get done, not on how many hours or days worked. Just as we don't have a nine-to-five policy, we don't need a vacation policy.

My number one rule in business, and in life, is to enjoy what you do. Running a business involves long hours and hard decisions; if you don't have the passion to keep you going, your business will more than likely fail. If you don't enjoy what you are doing, then you shouldn't be doing it.