May each of you live lives of immersion. They won't necessarily be easy lives. But in the end, it is all that will sustain us.

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

Africans didn't want saving, thank you very much, least of all not by me.

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.

I have seen that traditional approaches to charity and aid don't solve problems of poverty. In fact, too often they create dependence.

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.

I still feel that the kind of leader I want to be is one that spends time understanding our work in a way that allows me to translate it for policymakers and people who have real access to resources.