The idea of childhood as a social invention, in retrospect, is hardly credible. In the Bible, in writings of the Greeks and Romans, and in the works of the first great educator of the modern era, Comenius, children were recognized as being both different from adults and different from one another with respect to their stages of development. To be sure, the scientific study of children and the increased length of life in modern times have enhanced our understanding of age differences, but they have always been acknowledged.

Certainly, young children can begin to practice making letters and numbers and solving problems, but this should be done without workbooks. Young children need to learn initiative, autonomy, industry, and competence before they learn that answers can be right or wrong.

We now recognize that abuse and neglect may be as frequent in nuclear families as love, protection, and commitment are in nonnuclear families.

Children in the 21st (century) have been transformed from net producers of their own toy and play culture, to net consumers of play culture imposed by adults.

The conviction that the best way to prepare children for a harsh, rapidly changing world is to introduce formal instruction at anearly age is wrong. There is simply no evidence to support it, and considerable evidence against it. Starting children early academically has not worked in the past and is not working now.

Many older wealthy families have learned to instill a sense of public service in their offspring. But newly affluent middle-classparents have not acquired this skill. We are using our children as symbols of leisure-class standing without building in safeguards against an overweening sense of entitlement--a sense of entitlement that may incline some young people more toward the good life than toward the hard work that, for most of us, makes the good life possible.

There's enough evidence that variation in sexual orientation is more a function of genes than of environment and for that reason alone, it should be accepted as but another example of human variability.