So, for me, working with larger companies has often been very satisfying, precisely because of the ability of bringing critical mass to bear on a given effort.

Henry Kissinger once told me he was very concerned about the Internet's impact on people's ability to absorb information in a concentrated way, because we've become accustomed to looking up something, getting a snippet and being satisfied with that - as opposed to reading through and considering a weighty tome that goes into great depth.

Although I've had several major career changes, I was extremely hesitant about making some of them.

There is a project that's underway called the interplanetary Internet. It's in operation between Earth and Mars. It's operating on the International Space Station. It's part of the spacecraft that's in orbit around the Sun that's rendezvoused with two planets.

Shouldn't everybody join hands to give the basic minimum - food, education and health - to the entire population?

I think a liberal arts education isn't necessarily about doing something with your degree; it's about becoming a critical thinker. And I think that critical thinking is so integral to being an actor.

The United States should pursue a more robust agenda for U.S. competitiveness and innovation focused on a lower-carbon economy, including investments in education, basic research and development, infrastructure, retraining, retirement security, and universal health care.

Perhaps more than English or history, STEM subjects require an enormous amount of foundational learning before students can become competent.