I've seen over and over how much self-belief drives outcomes. And that's why I force myself to sit at the table, even when I am not sure I belong there - and yes, this still happens to me. And when I'm not sure anyone wants my opinion, I take a deep breath and speak up anyway.

It's hard to visualize someone as a leader, if she is always waiting to be told what to do.

What about the rat race in the first place? Is it worthwhile? Or are you just buying into someone else's definition of success? Only you can decide that, and you'll have to decide it over and over and over. But if you think it's a rat race, before you drop out, take a deep breath. Maybe you picked the wrong job. Try again. And then try again.

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?

We [Facebook] really believe in enabling people to be their authentic selves on the web, and enabling people to communicate directly with each other in a very personal way.

Aiming for perfection causes frustration at best and paralysis at worst.

Social gains are never handed out. They must be seized.