What works for men does not always work for women, because success and likability are positively correlated for men and negatively correlated for women. That's what the research shows. As a man gets more successful, everyone is rooting for him. As a woman gets more successful, both men and women like her less.

My hope in writing 'Lean In: Women, Work, and the Will to Lead' was to change the conversation from what women can't do to what we can.

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.

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.

Let's acknowledge that men reach for opportunities more quickly and more easily than women. So often as managers, we give the job to whoever starts solving the problem, to whoever jumps in. Since we know men will jump in faster than women in so many circumstances, we have to slow down and encourage more women to sit at more tables.

But I really believe that when you give people authentic identity, which is what Facebook does, and you can be your real self and connect with real people online, things will change.

Framing the issue of work-life balance - as if the two were dramatically opposed - practically ensures work will lose out. Who would ever choose work over life?