A company is simply a group of people. And as a leader of people, you have to be a great listener, you have to be a great motivator, you have to be very good at praising and looking for the best in people. People are no different from flowers. If you water flowers, they flourish. If you praise people, they flourish. That's a critical attribute of a leader.

The truth is this: the Earth cannot provide enough food and fresh water for 10 billion people, never mind homes, never mind roads, hospitals and schools.

People who work for me are working for what I believe in. The leaders who run our companies do so on the basis of those who came first and who said, "A company is its people." I hope my companies are run on the basis of praising their workers and looking for the best in them, not criticizing them. In the same way that you water a plant and it sprouts leaves, people flourish when you praise them.

Ridiculous yachts and private planes and big limousines won't make people enjoy life more, and it sends out terrible messages to the people who work for them. It would be so much better if that money was spent in Africa - and it's about getting a balance.

I may be a businessman in that I set up and run companies for profit, but when I try to plan ahead and dream up new products and new companies, I'm an idealist.

If people are crazy enough to dare, impossible things happen.

Once a changemaker, always a changemaker but only a few swim against the tide.