A man has to define himself as a breadwinner, as opposed to thinking that well, women used to be caregivers who also wanted to have careers; men have always had careers, so why shouldn't they also want much more family time?

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

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.

Having it all means having the same work and family choices that men do. It doesn't mean having everything that you want. No one has that.

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.

When I used to teach civil procedure as a law professor, I would begin the year by telling my students that “civil procedure is the etiquette of ritualized battle.” The phrase, which did not originate with me, captured the point that peaceful, developed societies resolve disputes by law rather than by force.

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.