Bill Gates

Governments will always play a huge part in solving big problems. They set public policy and are uniquely able to provide the resources to make sure solutions reach everyone who needs them. They also fund basic research, which is a crucial component of the innovation that improves life for everyone.

But I think it's very key that there's a plan for Haiti. And we have to begin to - as progressives and people who are concerned about Haiti and have been concerned about Haiti, we have to begin to build some sort of consensus, a movement around the Haiti that the Haitians envision.

And I think that still is true of this business - which is basically research and development - that you probably spend more time in planning and training and designing for things to go wrong, and how you cope with them, than you do for things to go right.