Motivation comes from working on things we care about. It also comes from working with people we care about.

I hope you find true meaning, contentment, and passion in your life. I hope you navigate the difficult times and come out with greater strength and resolve. I hope you find whatever balance you seek with your eyes wide open. And I hope that you - yes, you - have the ambition to lean in to your career and run the world. Because the world needs you to change it.

What I tell everyone, and I really do for myself is, I have a long-run dream, which is I want to work on stuff that I think matters.

Motivation comes from working on things we care about. It also comes from working with people we care about.

Facebook is a really exciting place trying to do something really important that I really believe in. And it matters.

My goal is very clear, and I wrote about it in Lean In, which is that women run half our companies and countries and men run half our homes. As much as I wish that could happen in four years, I don't think that's a likely time period. But I think it can happen sooner than we think. Part of it is having that aspiration and that goal. I think we too often suffer from the tyranny of low expectations.

It's pretty exciting to take real people living in the real world, their opinions, and have people have to react to that. As opposed to their perceptions of what people are thinking, which are often very different.