I am convinced that this country is ready to have a woman in the White House, but I also think there's still a lot of hidden sexism.

Believe it or not, we will actually be better and happier workers if we are allowed to be better parents. We might even rediscover our capacity for fun.

When we talk about gender pay gaps in the United States, and if you look at women without children, they earn 96 cents for every dollar that a man is earning, while for mothers it is about 76 cents. That's nearly 25 percent less. For single mothers, the situation is even worse. One third of them are living in poverty or just on the edge of poverty. This is an unacceptable situation.

Young men keep telling me they don't 'have it all' either. And they may have a point. But if you define 'having it all' as the opportunity to have a successful career and a family, I'd say this. When a man tells his coworkers he's going to have a child, no one asks him how he'll manage or if he'll be coming back to work.

I very much admire Sheryl Sandberg for what she has done. I really do. But Sandberg's narrative also implies: "Well, it's your fault if you couldn't make it." There is a certain injustice in that.

There's a tremendous loss of talent to businesses who cannot make room for their employees to attend to family responsibilities. It really amounts to corporate waste: They hire really talented women and then lose them because they can't find ways to keep them productive and content the minute they can't "lean in."

Motherhood is a greater predictor of wage inequality than gender is. It's enormous.