It's really kind of cool to have solar panels on your roof.

Our current expectations for what our students should learn in school were set fifty years ago to meet the needs of an economy based on manufacturing and agriculture. We now have an economy based on knowledge and technology.

So not only are we saving lives now, we're creating the incentive for the breakthroughs that over the next generation will mean we can take AIDS, malaria and TB and bring those numbers dramatically down.

If you take from the most wealthy and give to the least wealthy, it's good. It tries to balance out.

Improving the health & productivity of the poorest is one of the best investments you can make in the future of the world

If we have optimism without empathy then it doesn't matter how much we master the secrets of science. We're not really solving problems, we're just working on puzzles.

Certainly, the Windows share of servers is strong.