There are really good reasons to leave the workforce or work less or take a different job when you want to be with your children. I just want women - and men - to make that choice once they have the child. Not years in advance, because... they don't get the right opportunities. They give up before they even start.

It is the ultimate luxury to combine passion and contribution. It's also a very clear path to happiness.

I want to tell any young girl out there who's a geek, I was a really serious geek in high school. It works out. Study harder.

Your life's course will not be determined by doing the things that you are certain you can do. Those are the easy things. It will be determined by whether you try the things that are hard.

The reason I wrote Lean In is I think people weren't actually noticing that we had stopped making progress. I gave a TED talk and said: "It turns out men still run the world." And the audience gasped as if that was news.

The gender stereotypes introduced in childhood are reinforced throughout our lives and become self-fulfilling prophesies. Most leadership positions are held by men, so women don't expect to achieve them, and that becomes one of the reasons they don't.

No industry or country can reach its full potential until women reach their full potential.