I have to say that in 1981, making those decisions, I felt like I was providing enough freedom for 10 years. That is, a move from 64k to 640k felt like something that would last a great deal of time. Well, it didn't - it took about only 6 years before people started to see that as a real problem.

Polio's pretty special because once you get an eradication, you no longer have to spend money on it; it's just there as a gift for the rest of time.

The trouble with energy farming is that the energy isn't always where you want to use it, and it isn't always when you want to use it.

I believe technology will continue to become more affordable and more people will have the chance to use it. This will help more people get medical care and a good education.

The present and future of knowledge attainment and essential business skills.

DNA is like a computer program but far, far more advanced than any software ever created.

The barrier to change is not too little caring; it is too much complexity.