Flying cars are not a very efficient way to move things from one point to another.

There's always a tricky issue when you get into stolen material or pornography. The laws for online publishing the same as for print-based publishing, where if you're hosting certain types of things and somebody notifies you about that.

For a highly motivated learner, it's not like knowledge is secret and somehow the Internet made it not secret. It just made knowledge easy to find. If you're a motivated enough learner, books are pretty good.

Whenever you have a few setbacks, the idea that half as many children are dying now as back in 1990 and so... it was over 12 million a year, now it's less than 6 million a year. We have a clear path to get that under 3 million a year and we know what to do. And this generation of young Africans is a very large group.

I don't generally read a lot of fiction.

If African farmers can use improved seeds and better practices to grow more crops and get them to market, then millions of families can earn themselves a better living and a better life.

With a public library card in your hand, you have access to the Internet and a world of opportunities.