At Facebook, we try to be a strengths-based organization, which means we try to make jobs fit around people rather than make people fit around jobs. We focus on what people's natural strengths are and spend our management time trying to find ways for them to use those strengths every day.

Speak up. Believe in yourself. Take risks.

I just believed. I believed that the technology would change people's lives. I believed putting real identity online - putting technology behind real identity - was the missing link.

There is no perfect fit when you're looking for the next big thing to do. You have to take opportunities and make an opportunity fit for you, rather than the other way around. The ability to learn is the most important quality a leader can have.

We're the only developed country in the world that doesn't have paid maternity leave. Paternity leave is just as important. Paid family medical leave so that you can take care of a parent, a child, a grandparent, whatever you need to do. I think we're shortsighted when we don't invest in our employees as companies, and as an economy, because we invest in them and they invest back in us.

The traditional metaphor for careers is a ladder, but I no longer think that metaphor holds. It just doesn’t make sense in a less hierarchical world... Build your skills, not your resume. Evaluate what you can do, not the title they’re going to give you. Do real work. Take a sales quota, a line role, an ops job. Don’t plan too much, and don’t expect a direct climb. If I had mapped out my career when I was sitting where you are, I would have missed my career.

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.