The human body is the most complex system ever created. The more we learn about it, the more appreciation we have about what a rich system it is.

Historically, privacy was almost implicit, because it was hard to find and gather information. But in the digital world, whether it's digital cameras or satellites or just what you click on, we need to have more explicit rules - not just for governments but for private companies.

The most meaningful way to differentiate your company from your competition, is to do an outstanding job with information.

The Chinese are clearly inculcating the idea that science is exciting and important, and that's why they, as a whole-they're graduating four times as many engineers as we are, and that's just happened over the last 20 years.

I believe that every life is valuable. That we can make things better. That innovation is the key to a bright future. That we're just getting started.

If you count E-mail, I'm on the Internet all day, every day.

Making sure all our students get a great education, find a career that's fulfilling and rewarding, and have a chance to live out their dreams ... wouldn't just make us a more successful country - it would also make us a more fair and just one.