Day care poses no risk for children, provided that it is high quality.... Poor quality day care is risky for children everywhere.... The cost of poor quality day care is measured in children's lives. High quality day care costs only money.

Fortunately for common sense, psychological research has shown that babies with more than one attachment are less distressed whenmother leaves to go to work. They are more content and playful in the presence of other adults, meaning that they feel secure with people other than Mother.

Ideas about mothers have swung historically with the roles of women. When women were needed to work the fields or shops, experts claimed that children didn't need them much. Mothers, who might be too soft and sentimental, could even be bad for children's character development. But when men left home during the Industrial Revolution to work elsewhere, women were "needed" at home. The cult of domesticity and motherhood became a virtue that kept women in their place.

Each era invents its own child. Over the past 500 years, conceptions of the child changed gradually from an ill-formed adult who must be subjugated to society's goals to a precious being who must be protected from unreasonable social demands. Childhood has come to be seen as a special period of life, rather than as a temporary state of no lasting importance for adulthood.

All we know is that the school achievement, IQ test score, and emotional and social development of working mothers' children are every bit as good as that of children whose mothers do not work.

Children are just different from one another, especially in temperament. Some are shy, others bold; some active, others quiet; some confident, others less so. Respect for individual differences is in my view the cornerstone of good parent-child relationships.

Mothers have not always had the most important role in their children's upbringing, when they had other economic roles to play. Inpast centuries, fathers were the key parent in the upbringing of the next generation, because moral training, not emotional sensitivity, was thought to be central to successful child-rearing. Mothers were thought to corrupt their little ones with too much affection and not enough stern training.