I finally understood: In order to contribute to Africa, I would have to know myself better and be clearer about my goals. I would have to be ready to take Africa on its own terms, not mine, and to learn my limits and present myself not as a do-gooder with a big heart, but as someone with something to give and gain by being there. Compassion wasn't enough

Human beings want to see each other. We want to be heard by each other.

We need moral leadership and courage in our world.

On the one hand, I loved being a banker. I loved how numbers could tell a story and how you can invest in ideas and see them translate into products and services and create jobs. What I didn't like, particularly where I was working in Brazil during the debt crisis of the early '80s, was how the poor were excluded from the banking system. I made the decision to try and experiment with whether we could use the tools of banking to extend the benefits of the economy to the poor.

Our actions - and inaction - touch people every day, people we may never know and never meet.

Philanthropy is no longer about writing a check for $10,000 to the opera.

Don't let people tell you to do it this way. You are on the verge of figuring out hybrid models -- with companies and nonprofits, markets, government, crowd-sourced philanthropy. The capitalist system as we know it is not working.