I've always worn my wedding band when I'm working out. A few years ago I realized how dangerous wearing a metal band could be and switched to silicone.

There's no better place in the world for technology start-ups than Silicon Valley; there's such an incredible well of talent and capital and resources. The whole system is set up to foster the creation of new companies.

I guess I would just say that in general, one of my weaknesses is that I love everything. There's too much of everything to keep up with it all. I get bored with Silicon Valley technology a lot. I've always had much more of a draw to the people who are doing things for love than the people who are doing things for money.

It's happening: Lou Dobbs' dream come true and Silicon Valley's worst nightmare. We're already seeing the reverse brain drain as smart immigrants take their U.S. educations and experience building companies and creating technology back to their home countries.

What's been missing from regions outside of Silicon Valley is a 'playbook.' In American football, a playbook contains a sports team's strategies and plays. It struck me that every region needs its own industry playbook on how to compete globally.

The thing we should all be looking for are people who want to make a difference. I'm a big believer in the Silicon Valley religion of the power of markets. But I also believe in our obligation to give back, and to give back in the way we do business, to create more value than we capture for ourselves.

TV requires a lot more patience. No one's ever like, 'I gotta get up at 5 A.M. and write my stand-up!' It's an easy life. With 'Silicon Valley,' it's long hours and very unglamorous.

Here in Silicon Valley, I have taken part in hundreds of conversations trying to convince people to dive in and become entrepreneurs. All too often, innovators with good, safe, jobs are unwilling to put their family's access to health care at risk by walking away from company-backed medical insurance.

The natives of Silicon Valley learned long ago that when you share your knowledge with someone else, one plus one usually equals three. You both learn each other's ideas, and you come up with new ones.

The power in Washington, D.C., is centered on the status quo - outdated systems, models, and programs built for a previous century. With more silicon and less concrete, we can open up those models to return power and independence to every man, woman, and child.

When I came out of Stanford, I looked at my brilliant classmates, who were going into Wall Street high finance, Silicon Valley, advanced engineering, and I said to myself, 'Jeff, go into an industry where nobody can add.'

I think like a Silicon Valley entrepreneur. Failure is a great teacher. At the same time, you must remember, success will never last... Whether it's tech or fashion, it must be for the customer.

In most parts of the world, starting a company that goes bust is dubbed a 'failure.' In Silicon Valley, we call this 'gaining experience.' We are willing to take the risks that are inherent for innovation.

What I learned from my years in Silicon Valley is that design can have a primary role in how a business is shaped, how a company can be design-driven. In my experience of large industry in Europe, that knowledge has been lost.

My friends are people who like building cool stuff. We always have this joke about people who want to just start companies without making something valuable. There's a lot of that in Silicon Valley.

Elon Musk is talking about silicon nanoparticles pulsing through our veins to make us sort of semi-cyborg computers. But why not take a noninvasive approach? I've been working and trying to think and invent a way to do this for a number of years and finally happened upon it and left Facebook to do it.

Silicon Valley is a great place for Bitcoin, since everyone understands computers, and there are lots of libertarians running around.

By the time I was a senior in high school, I knew I wanted to move to Silicon Valley and learn more about computers and the Internet. I just fell in love with technology and the potential of everything the Internet had to offer.

So a more sensible thing it seemed to me was to go to Silicon Valley and be pushing on the technology companies to accelerate the use of audio and music in computers.

Look at what Silicon Valley has done - the advance of computers.

People always fear change. People feared electricity when it was invented, didn't they? People feared coal, they feared gas-powered engines... There will always be ignorance, and ignorance leads to fear. But with time, people will come to accept their silicon masters.

Car technology needs to advance, and the best place for that to happen in is Silicon Valley.

Silicon Valley has some of the smartest engineers and technology business people in the world.

I think the high-tech industry is used to developing new things very quickly. It's the Silicon Valley way of doing business: You either move very quickly and you work hard to improve your product technology, or you get destroyed by some other company.