In those same 10 years, women are getting more and more of the graduate degrees, more and more of the undergraduate degrees, and it's translating into more women in entry-level jobs, even more women in lower-level management. But there's absolutely been no progress at the top. You can't explain away 10 years. Ten years of no progress is no progress.

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.

If more women are in leadership roles, we'll stop assuming they shouldn't be.

Feeling confident - or pretending that you feel confident - is necessary to reach for opportunities. It's a cliché, but opportunities are rarely offered; they're seized.

Believe in yourself and negotiate for yourself. Own your own success.

Both men and women react negatively when women negotiate on their own behalf. A man can just negotiate: "I have a better offer. That's not enough to make my family's ends meet." No one feels bad about it. But when a woman does that, there's a backlash.

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