What are the top 20 universities in the world that do good materials research that might create carbon fibers to do jet stream kites or new magnets that will allow [energy] generation to be done up there and you just bring the electricity down. You either have to bring down rotational energy, which is hard, or you have to have the generator up there and bring down the electricity. Well, putting the generator up there is hard to do because it's too heavy.

I choose a lazy person to do a hard job. Because a lazy person will find an easy way to do it.

There's always been a lot of information about your activities. Every phone number you dial, every credit-card charge you make. It's long since passed that a typical person doesn't leave footprints.

We have two other countries, Pakistan and Afghanistan - again it's the instability that is a problem there. So over the next several years, we expect to drive the number of [polio] cases back down to zero because that is likely to be the second disease after smallpox that we completely eradicate.

Success on the Web require high-level corporate understanding of the Internet's capabilities and support of early test-and-invest projects.

You know capitalism is this wonderful thing that motivates people, it causes wonderful inventions to be done. But in this area of diseases of the world at large, it's really let us down.

You always overestimate what you can get done in a year and underestimate what you can get done in 10 years.