Men can comfortably claim credit for what they do as long as they don't veer into arrogance. For women, taking credit comes at a real social and professional cost.

The social web can't exist until you are your real self online. I have to be me. You have to be you. Once we are online as ourselves, connected to each other and our other friends, then you can have the evolution of what becomes the social web.

Coming from Google, you don't exactly spend a lot of time at Microsoft.

At Facebook, we try to be a strengths-based organization, which means we try to make jobs fit around people rather than make people fit around jobs. We focus on what people's natural strengths are and spend our management time trying to find ways for them to use those strengths every day.

Grief affects job performance, so giving workers time off to grieve can lead to stronger outcomes at work.

Aggressive and hard-charging women violate unwritten rules about acceptable social conduct. Men are continually applauded for being ambitious and powerful and successful, but women who display these same traits often pay a social penalty. Female accomplishments come at a cost.

We need to stop telling [women], "Get a mentor and you will excel." Instead, we need to tell them, "Excel and you will get a mentor.