Leadership is about making others better as a result of your presence and making sure that impact lasts in your absence." (Harvard Business School definition of leadership)

Real change will come when powerful women are less of an exception. It is easy to dislike senior women because there are so few.

I wish I could just go tell all the young women I work with, all these fabulous women, 'Believe in yourself and negotiate for yourself. Own your own success.' I wish I could tell that to my daughter. But it's not that simple.

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

She explained that many people, but especially women, feel fraudulent when they are praised for their accomplishments. Instead of feeling worthy of recognition, they feel undeserving and guilty, as if a mistake has been made. Despite being high achievers, even experts in their fields, women can't seem to shake the sense that it is only a matter of time until they are found out for who they really are- impostors with limited skills or abilities.

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.

No one gets to the top, if they sit on the sidelines, or if they don't believe in themselves.