As Peter L. Berger (1963, pp. 23–24) notes in his classic book Invitation to Sociology, “The first wisdom of sociology is this—things are not what they seem.” Social reality, he says, has “many layers of meaning,” and a goal of sociology is to help us discover these multiple meanings. He continues, “People who like to avoid shocking discoveries, who prefer to believe that society is just what they were taught in Sunday School…should stay away from sociology.”

If that bit of common sense(lessness) were still with us, many of the women reading this book would not be in college.

If you relied on your personal experience to understand the typical American marriage, you would conclude that most marriages were as good as your parents’ marriage, which, unfortunately, also is not true. Many other examples could be cited here, but the basic point should be clear: although personal experience is better than nothing, it often offers only a very limited understanding of social reality other than our own.