There's 20 companies that I have investments in - some batteries, some solar-thermal, one big nuclear thing. We need hundreds and hundreds of companies like that, so that in a 20-year time frame we really are starting to change the energy infrastructure.

When I was young I liked taking tests. I happened to be good at it. Certain subjects came easily, like math. All the science stuff. I would just read the textbooks in the first few days of class.

I studied every thing but never topped.... But today the toppers of the best universities are my employees

There is a certain responsibility that accrued to me when I got to this unexpected position.

I think the positive competition between states in India is one of the most positive dynamics that the country has.

Innovation is moving at a scarily fast pace.

I think when smallpox was eliminated, the whole world got pretty excited about that because it’s just such a dramatic success.