Vision without execution is daydreaming.

The first rule of any technology used in a business is that automation applied to an efficient operation will magnify the efficiency. The second is that automation applied to an inefficient operation will magnify the inefficiency.

The Green Revolution focused on the big three - maize, rice and wheat - and the Green Revolution did not adapt the big three to African conditions, other than South Africa, as much as they should have.

I didn't used to wear a watch. Now I have a SPOT watch, which I wear all the time.

If geek means you're willing to study things, and if you think science and engineering matter, I plead guilty. If your culture doesn't like geeks, you are in real trouble.

Exposure from a young age to the realities of the world is a super-big thing.

What destroys more self-confidence than any other educational thing in America is being assigned to some remedial math when you get into some college, and then it's not taught very well and you end up with this sense of, 'Hey, I can't really figure those things out.'