In inner-city, low-income communities of color, there's such a high correlation in terms of educational quality and success.

Until we're educating every kid in a fantastic way, until every inner city is cleaned up, there is no shortage of things to do.

In low-income countries, the main problems you have is infectious diseases.

In low-income countries, getting to a health post is hard. It's very expensive.

I never expected Microsoft to be so successful, ... We're not ashamed that we've taken the low-price, high-volume approach here, which is different than the competitors, who are trying to get a leg-up from the government.

If there's one cultural quality we have, it's that we always see ourselves as an underdog.