Energy innovation is not a nationalistic game.

The current information revolution is a cultural revolution, a social revolution, a thoroughgoing technological revolution that involves not just information, but labor, leisure, entertainment, communication, education, culture and thus is part of a major cultural and social shift.

With polio, we've gone several years with no polio in all of Africa, but now with this we're having to go and mop up in that whole region, so it's a bit of a setback for polio. So in parallel we have to go back and get rid of those cases.

As we get robots becoming more sophisticated, I think we should worry sooner rather than later on how much they could take over, but I think it'll mostly be a positive thing. In terms of deadlines it won't be any worse than nuclear weapons.

Success today requires the agility and drive to constantly rethink, reinvigorate, react, and reinvent.

Security guys break the Mac every single day. Every single day, they come out with a total exploit, your machine can be taken over totally.

Nobody spends any money on smallpox unless they worry about a bio-terrorist recreating it.