Good customer service begins at the top. If your senior people don't get it, even the strongest links further down the line can become compromised.

For a successful entrepreneur it can mean extreme wealth. But with extreme wealth comes extreme responsibility.

There is no such thing as a boring person: everyone has stories and insights worth sharing. While on the road, we let our phones or laptops take up our attention. By doing that, we might miss out on the chance to learn and absorb ideas and inspiration from an unexpected source: our fellow travelers.

I would not be able to change a sparking plug and I would not be able to fly a spaceship or build a rocket or whatever. But what I am good at doing is finding brilliant people and surrounding myself with brilliant people.

I had no plans to be an entrepreneur. I just wanted to be a journalist and write for a magazine. At 15, I just decided to leave school and launch a national student magazine.

The key is to set realistic customer expectations, and then not to just meet them, but to exceed them - preferably in unexpected and helpful ways.

Smiling can be a competitive advantage. It makes everyone feel better and every situation brighter.