At some point, that risk-taking private capital can take over, and have patents and trade secrets and things that let them lead the way, which happened with the steam engine and some other things, although with energy, the time of adoption is a lot longer than it is with, say, IT products or even medical advances, like drugs and vaccines.

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.

Everyone needs a coach. It doesn't matter whether you're a basketball player, a tennis player, a gymnast or a bridge player.

I definitely think leaving kids massive amounts of money is not a favor to them.

By 2035, there will be almost no poor countries left in the world.

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.

Setting clear goals and finding measures that will mark progress toward them can improve the human condition.