As a country and as a world, we are not comfortable with women in leadership roles. We call little girls bossy.

When it comes time to settle down, find someone who wants an equal partner. Someone who thinks women should be smart, opinionated, and ambitious.

It's hard to visualize someone as a leader, if she is always waiting to be told what to do.

Grief comes and goes, it ebbs and flows. I think one of the lessons of this for me is that there's no one way to grieve. Everyone does it in their own way, in their own time, and we all process life and its challenges and its ups and downs as they come.

I have a five year-old son and a three year-old daughter. I want my son to have a choice to contribute fully in the workforce or at home. And I want my daughter to have the choice to not just succeed, but to be liked for her accomplishments.

We [Facebook] really believe in enabling people to be their authentic selves on the web, and enabling people to communicate directly with each other in a very personal way.

Women systematically underestimate their own abilities.