Today, despite all of the gains we have made, neither men nor women have real choice. Until women have supportive employers and colleagues as well as partners who share family responsibilities, they don't have real choice. And until men are fully respected for contributing inside the home, they don't have real choice either.

When I went to college, as much as my parents emphasized academic achievement, they emphasized marriage even more. They told me that the most eligible women marry young to get a 'good man' before they are all taken.

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

And in situations where a man and a woman each receive negative feedback, the woman's self-confidence and self-esteem drop to a much greater degree. The internalization of failure and the insecurity it breeds hurt future performance, so this pattern has serious long-term consequences.

Women don't take enough risks. Men are just 'foot on the gas pedal.' We're not going to close the achievement gap until we close the ambition gap.

It's more pressure on women to - if they marry or partner with someone, to partner with the right person. Because you cannot have a full career and a full life at home with your children if you are also doing all of the housework and child care.

Over the last 10 years, women have stalled out at the top.