As societies continue to loosen their standards regarding what is appropriate female and male behavior, I think we are going to realize we have not only underestimated women, but also men.

If two very different people pool their DNA, they'll create more genetic variety, and their young will come to the job of parenting with a wider array of skills.

Women, it turns out, are built to lead - particularly in the modern world.

I think that property is very important in this day and age. It defines you; you worked hard to get it. It's meaningful to you, and when you divorce, a lot of people have a lot of battles over their property for good reasons.

You don't come home from the office to spend time with another job. Hopefully you come home to someone you can have a good time with.

Kissing is not just kissing. It is a major escalation or de-escalation point in a powerful process of mate choice.

Until recently, we regarded love as supernatural. We were willing to study the brain chemistry of fear and depression and anger but not love.