Embrace bad news to learn where you need the most improvement.

We all have the chance to create a world where extreme poverty is the exception rather than the rule.

Depending on how quickly you get ocean rise, you have people who live in river deltas [at risk]. Bangladesh is largely a river delta, and the rising sea level means that when storms come in, the human sanitation is backing up, the ability to farm, it's destructive-type situations like you saw in New Orleans with Katrina. You're increasing the frequency of that stuff in low-lying areas fairly dramatically.

More and more software would just increase the number of tasks that the computer would help solve.

I never took a day off in my twenties. Not one.

I know that historically our foundation has had great relations with all the administrations.[Bill] Clinton administration did a lot of outreach. The greatest rise in U.S. foreign aid was under the [George] Bush administration, that's where we got the AIDS initiative, which is called PEPFAR.

The world won't care about your self-esteem. The world will expect you to accomplish something BEFORE you feel good about yourself.