Two things that I think matter are gratitude and joy.

If you're offered a seat on a rocket ship, don't ask what seat! Just get on.

It's easy to dislike the few senior women out there. What if women were half the positions in power? It would be harder to dislike all of them.

I gave a talk on gender stuff at Facebook one morning and a man didn't come. It was optional; he didn't have to come. But he sent a note saying, "I missed your meeting because I drove my kids to school so my wife could do something else. Thank you for making that possible." I think that employee is a loyal employee for Facebook and I think more companies should want that kind of loyalty.

It is illegal to discriminate on the basis of pregnancy or gender. It is not illegal to talk about it.

Most people assume that women are responsible for households and child care. Most couples operate that way - not all. That fundamental assumption holds women back.

And what I saw happening is that women don't make one decision to leave the workforce. They makes lots of little decisions really far in advance that kind of inevitably lead them there.