It's obviously incredibly important to keep the body fit in order to keep the mind fit, and be able to find time for friends.

I felt uneasy about making the rapid decisions I have always made, and wondered whether every decision should be formally ratified and minuted at a board meeting.

About 40 percent of my time is spent on social issues and building new organizations, more for the benefit of the climate or health issues.

Life is a series of ups and clowns. Make it worth your wild!

Colleagues should take care of each other, have fun, celebrate success, learn by failure, look for reasons to praise not to criticize, communicate freely and respect each other.

Look, if you can indulge in your passion, life will be far more interesting than if you're just working. You'll work harder at it, and you'll know more about it. But first you must go out and educate yourself on whatever it is that you've decided to do - know more about kite-surfing than anyone else. That's where the work comes in. But if you're doing things you're passionate about, that will come naturally.

We have the enormous opportunity in our hands to make a positive difference for business, people, and the planet.