The death of a child is an incredible tragedy all over the world. Back in 1990, about 12 percent of children were dying before they reached the age of 5.

Well, jobs are a great thing. You have to be a bit careful: If you raise the minimum wage, you’re encouraging labor substitution and you’re going to go buy machines and automate things - or cause jobs to appear outside of that jurisdiction. And so within certain limits, you know, it does cause job destruction. If you really start pushing it, then you’re just making a huge trade-off.

The first big effects will be farmers that live on the edge. Today's weather, they barely get by. Their kids, a high percentage are malnourished, and so if you impose more variable weather and more heat, you're getting more floods, more droughts, and during the germination time, the high heat, most crops...do poorly when there's more heat.

China is certainly an important player in the global economy, and a widespread AIDS epidemic would threaten that growth.

We all sort of do want incentives for creative people to still exist at a certain level. You know, maybe rock stars shouldn't make as much; who knows? But you want as much creativity to take place in the future as took place in the past.

Once you embrace unpleasant news, not as a negative but as evidence of a need for change, you aren't defeated by it. You're learning from it.

As I look forward, I'm very optimistic about the things I see ahead.