"Like its agriculture, Africa's markets are highly under-capitalized and inefficient. We know from our work around the continent that transaction costs of reaching the market, and the risks of transacting in rural, agriculture markets, are extremely high. In fact, only one third of agricultural output produced in Africa even reaches the market."

"Anywhere the struggle is great, the level of ingenuity and inventiveness is high."

"In 1984-85, the year of the famine that killed nearly a million Ethiopians, I was an undergraduate at Cornell. At dinner one night, other students started throwing food. And suddenly - shocking myself - I got up on a chair and I screamed, 'Stop doing this! In my country people are starving!' In that moment, I knew that I owed my country something."

"One way to express choice is through the market. Well-functioning markets provide choices and, ultimately, the ability to express one's pursuit for happiness."

"What is the American dream? The American dream is one big tent. One big tent. And on that big tent you have four basic promises: equal protection under the law, equal opportunity, equal access, and fair share."

"You need to know what makes artists tick. Having been through the process myself as a musician, since I was an early teen, gave me an advantage - understanding them from their point of view, because it's about them, it's not about you - it's their vision and what they're capable of achieving, and you're the conduit."

"There are some aspects of the diagram that I wish I had expressed a little more clearly."

"When I'm alone, I can sleep crossways in bed without an argument."