Hopefully, whether it's energy or child vaccines, the case of the many benefits helping countries so that they are stable, so these refugee problems that have been troubling for Europe - a little less so for the U.S. but, even so, a lot of controversy there - these things are why the future's going to be better than the past. People really do look to the United States, so we'll be there making the case.

The obvious mathematical breakthrough would be development of an easy way to factor large prime numbers.

Who decides what's in Windows? The customers who buy it.

The tool that's most associated with the recent progress against malaria is the long-lasting bed net. Bed nets are a fantastic innovation. But we can do even better. We can invent new ways to control the mosquitoes that carry the malaria parasite.

Globalization has made copper and other minerals more valuable, and Ghana and Kenya have recently discovered mineral resources.

The greatest thing you can do for your competition - hire poorly.

Typically, your corporate e-mail account is not, today, that spam-targeted. It's more the free e-mail accounts that are spam-targeted.