Mark Zuckerberg

I will only hire someone to work directly for me if I would work for that person. It's a pretty good test.

Advertising works most effectively when it's in line with what people are already trying to do. And people are trying to communicate in a certain way on Facebook - they share information with their friends, they learn about what their friends are doing - so there's really a whole new opportunity for a new type of advertising model within that.

I feel like the thing we can do is celebrate people doing great work and create more cultural momentum and awareness that this is an important thing in the world. So when the next economic crisis hits and people are talking about where to cut from the budget, science isn't the thing.

In general, we're a social network. I prefer that because I think it is focused on the people part of it - as opposed to some people call it social media, which I think focuses more on the content.

For the first time we're allowing developers who don't work at Facebook to develop applications just as if they were. That's a big deal because it means that all developers have a new way of doing business if they choose to take advantage of it. There are whole companies that are forming whose only product is a Facebook Platform application.

Health is certainly extremely important, and we've done a number of things at Facebook to help improve global health and work in that area, and I am excited to do more there, too. But the reality is that it's not an either-or. People need to be healthy and be able to have the Internet as a backbone to connect them to the whole economy.

We just think that there are all these different ways that people want to share, and that compressing them all into a single blue app is not the right format of the future.

What we will do is we'll say, 'Okay, you have your page, and if you're not trying to organize harm against someone, or attacking someone, then you can put up that content on your page, even if people might disagree with it or find it offensive.' But that doesn't mean that we have a responsibility to make it widely distributed in News Feed.

Frankly, I think that the news industry is critically important because it points out things and surfaces truths that can often be uncomfortable. I think that that's working, and the spotlight has been pointed on things that we have a responsibility to do better, and I accept that.

It's not that every single thing that happens on Facebook is gonna be good. This is humanity. People use tools for good and bad, but I think that we have a clear responsibility to make sure that the good is amplified and to do everything we can to mitigate the bad.

There is a huge need and a huge opportunity to get everyone in the world connected, to give everyone a voice and to help transform society for the future. The scale of the technology and infrastructure that must be built is unprecedented, and we believe this is the most important problem we can focus on.

Facebook is inherently viral. There are lots of sites that include a contact importer, and for lots of them it doesn't really make sense. For Facebook it fits so well. It wasn't until a few years in that we started building some tools that made it easier to import friends to the site. That was a huge thing that spiked growth.