My innovation message, specifically including energy, happened to be the same week that on Monday and Tuesday I announced the Breakthrough Energy Venture Group. Then on that Tuesday afternoon, in December, was when I sat down with him. I explained the US has great science here, this is where the market for these things is going to be. It connects to less pollution, it connects to U.S. jobs, it connects to security, not needing the energy coming from far away.

Helping convene global stakeholders to establish a set of measurable, actionable and consensus-built goals focused on extreme poverty is invaluable.

Although I don't have a prescription for what others should do, I know I have been very fortunate and feel a responsibility to give back to society in a very significant way.

People think about this idea that there's 122 million kids that are alive that would not be if that fatality rate had stayed at the 1990 level, that's 122 million families.

Take agriculture, where we haven't done much, or sanitation; saying, "okay, we will be able to make a really huge effort there." It really energized the foundation and half of what we've gotten done in this last decade is because Warren [Buffett] trusted us.

Microsoft is a company that manages imagination.

All lives have equal value. And so you say, 'why do poor children die when other children don't? Why do some people have enough nutrition or reasonable toilets and other people don't?' So those basic needs that, through innovation, actually it's very affordable to bring them...to everyone.