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.

People need to believe that they can participate fully in the decisions that affect their lives and have a stake in the societies in which they live

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

In today's world, the elites are growing even more comfortable with one another across national lines, yet at the same time, less comfortable with low-income people who share their nationality. How we create those bonds of community that are truly global as well as national is one of our generation's great challenges.

When I first went to Africa, I thought that I was personally going to save the continent, if not the world.

Being poor doesn't mean being ordinary.

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