You can enjoy stargazing just by going out and learning a couple constellations with your kids.

Being called a huckster and a charlatan started several years ago, so that's something I'm accustomed to. In most cases, it doesn't bother me.

By working only when you are most effective, life is both more productive and more enjoyable. It's the perfect example of having your cake and eating it, too.

At its core, I don't view Facebook as a social network. I think it could become the driver's license of the Internet. And beyond that, it can become the pipes and the plumbing upon what most of the Internet is built. I think it's very well positioned.

I have scary eyes. I look like the guy in 'American History X,' yes. I remember coming home from school and asking my mum if I could get an eye transplant, and of course she declined.

If we define risk as 'the likelihood of an irreversible negative outcome,' inaction is the greatest risk of all.

Companies that start by redesigning the economics of an industry often finish by redesigning the whole industry-and owning it.