If you mess up, it's not your parents' fault, so don't whine about your mistakes, learn from them.

Well-spent aid money is saving lives for a few thousand dollars per life saved.

Google's done a super good job on search; Apple's done a great job on the IPod.

My mom and my dad were both very sociable, meeting lots of interesting people.

In poor countries, we still need better ways to measure the effectiveness of the many government workers providing health services. They are the crucial link bringing tools such as vaccines and education to the people who need them most. How well trained are they? Are they showing up to work?

Our vision, which has not changed since the day the company was founded.

I have seen firsthand that agricultural science has enormous potential to increase the yields of small farmers and lift them out of hunger and poverty.