There is no author whose books I look forward to more than Vaclav Smil.

I remember thinking quite logically that I didn't want to spoil my children with wealth and so that I would create a foundation, but not knowing exactly what it would focus on.

There is no doubt that as an economy grows in a great way like India has, that you have to step back and change your tax systems, because you start to get more disparities of wealth.

The outpouring of support from millions of people in the immediate aftermath of the earthquake in Haiti has been impressive.

The kids are a big part of my schedule.

So not only are we saving lives now, we're creating the incentive for the breakthroughs that over the next generation will mean we can take AIDS, malaria and TB and bring those numbers dramatically down.

Money has no utility to me beyond a certain point.