People flourish if they’re praised.

In Africa, villagers look up to elders; they are the moral voice of their community.

I also know, as an entrepreneur myself, you face new obstacles every day and you need to have the perseverance to see them through.

The bigger the dream, the greater the opportunity

When people screw up, give them a second chance.

Publicity is absolutely critical. A good PR story is infinitely more effective than a front page ad.

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.