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.

She explained that many people, but especially women, feel fraudulent when they are praised for their accomplishments. Instead of feeling worthy of recognition, they feel undeserving and guilty, as if a mistake has been made. Despite being high achievers, even experts in their fields, women can't seem to shake the sense that it is only a matter of time until they are found out for who they really are- impostors with limited skills or abilities.

I go around the room and ask people, 'What do you think?'

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.

I'd like to see where boys and girls end up if they get equal encouragement I think we might have some differences in how leadership is done

The reason I don't have a plan is because if I have a plan I'm limited to today's options.

Sixty-four percent of managers in the U.S. are afraid to be alone in a room with a woman. Mentoring is all about being alone in a room with someone. Let's start talking about this honestly. The lack of equal access is the silent killer for women and no one wants to talk about it.