Each of us can work to change a small portion of events. And it's in the total of all those acts that the history of this generation will be written.

Nothing important happens in life without a cost.

There are 60 million generators in Nigeria. The generator owners and distributors have a strong incentive to not encourage the distribution of solar and other alternative energies, even though it's better for the country, it's better for people. As a world, we've got to get more serious about confronting those obstacles. This knows no culture, no race, no ethnicity.

What we call people so often distances us from them, and makes them little.

Four billion people on Earth make less than four dollars a day.

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

I've learned that there is no currency like trust and no catalyst like hope. There is nothing worse for building relationships than pandering, on one hand, and preaching, on the other. And the most important quality we must all strengthen in ourselves is that of a deep human empathy, for that will provide the most hope of all and the foundation for our collective survival.