In 1975, which was the height of the women's movement, I thought I'd write a book on women's history. But in searching for a topic, I realized that there were few places in history where men and women interacted. Finally, it hit me: 'Oh, look at the family. That's the one place.'

There is no denying that we have made great progress toward gender equality.

Feminism insists on women's right to make choices - about whether to marry, whether to have children, whether to combine work and family or to focus on one over the other. It also urges men and women to share the joys and burdens of family life and calls on society to place a higher priority on supporting caregiving work.

Feminism needs a political program because gender inequality has been fostered by political decisions.

I love my wife. We FaceTime and we talk on the phone and she travels to come see me when she can. But she works as well. But we see each other a lot more than people would think, though, because we make it happen and we love each other so much.

If we did not have the impulse and ability to believe in the impossible, we would not have religion, democracy, or marriage.

I want to get married and have children and live happily ever after. That's important to me.

I'm turned off by the groupie thing. I'm a romantic; I like finding the right woman, and if it works, it works.