I've seen over and over how much self-belief drives outcomes. And that's why I force myself to sit at the table, even when I am not sure I belong there - and yes, this still happens to me. And when I'm not sure anyone wants my opinion, I take a deep breath and speak up anyway.

No industry or country can reach its full potential until women reach their full potential.

Two things that I think matter are gratitude and joy.

I'm not pretending I can give advice to every single person or every single couple for every situation; I'm making the point that we are not going to get to equality in the workforce before we get to equality in the home. Not going to happen.

Our culture needs to find a robust image of female success that is first, not male, and second, not a white woman on the phone, holding a crying baby.

I was grateful that Facebook already had generous bereavement policies . Now Facebook employees receive 20 days paid leave to grieve the loss of an immediate family member and 10 days for an extended family member. I'm proud that we're able to do this and I hope more businesses do the same. Only 60 percent of private sector workers get paid time off after the death of a loved one, and then it's usually just a few days. Workers and families deserve better than that.

We hold ourselves back in ways both big and small, by lacking self-confidence, by not raising our hands, and by pulling back when we should be leaning in.