The great thing that guys like Facebook's Mark Zuckerberg and the Google guys have in common is they treat their technology like it's art and I suppose in the hands of virtuosos like them it is.

Social cohesion was built into language long before Facebook and LinkedIn and Twitter - we're tribal by nature. Tribes today aren't the same as tribes thousand of years ago: It isn't just religious tribes or ethnic tribes now: It's sports fans it's communities it's geography.

No one has done a study on this as far as I can tell but I think Facebook might be the first place where a large number of people have come out. We didn't create that - society was generally ready for that. I think this is just part of the general trend that we talked about about society being more open and I think that's good.

The rise of Google the rise of Facebook the rise of Apple I think are proof that there is a place for computer science as something that solves problems that people face every day.

As social media is less about technology and more about relationship building we are starting to see more women have a heavy influence if not dominant role in the social media space. It's no wonder that Facebook is being run in part by chief operating officer Sheryl Sandberg.

I think peace should be done not only among governments but among people. It was impossible before the Facebook.

We can't blame children for occupying themselves with Facebook rather than playing in the mud. Our society doesn't put a priority on connecting with nature. In fact too often we tell them it's dirty and dangerous.

This is our commitment to users and the people who use our service is that Facebook's a free service. It's free now. It will always be free. We make money through having advertisements and things like that.

Facebook is at the forefront. It's the company that can fundamentally change the way information is being exchanged and processed. It can be the basis for artificial intelligence to develop over time.

I hope that Facebook and other Internet technologies were able to help people just like we hope that we help them communicate and organize and do whatever they want to every single day but I don't pretend that if Facebook didn't exist that this wouldn't even be possible. Of course it would have.