American businessman, investor, philanthropist, and writer best known for co-founding the software company Microsoft with his childhood friend Paul Allen.
In energy, you have to plan and do research way in advance, sometimes decades in advance to get a new system that's safer, doesn't require us to go around the world to get all our oil.
Really advanced civilization is based on advances in energy.
Driving up the value of the advertising is a big commitment for Microsoft.
Rich countries can afford to overpay for things.
At Microsoft there are lots of brilliant ideas but the image is that they all come from the top - I'm afraid that's not quite right.
Africa is on the rise.
For Africa to move forward, you've really got to get rid of malaria.
If African farmers can use improved seeds and better practices to grow more crops and get them to market, then millions of families can earn themselves a better living and a better life.
The outpouring of support from millions of people in the immediate aftermath of the earthquake in Haiti has been impressive.
I have been struck again and again by how important measurement is to improving the human condition.