I feel like I'm a relentless, pragmatic, determined optimist.

A sustainable world means working together to create prosperity for all.

People have to understand that unless social enterprise is experimental, it will not succeed in making a difference.

For too much of history, we've viewed the world's precious resources - both environmental and human - as things to extract, to make the most of in order to maximize their potential.

The only way we really create change is to enter any situation with the humility to listen and to recognize the world as it is, and then the audacity to dream what it could be.

If there's one value that is immutable, it's integrity or respect, for others and for yourself.

So many low income people have seen so many failed promises broken and seen so many quacks and sporadic medicines offered to them that building trust takes a lot of time, takes a lot of patience.