We humans, once we have become emotionally invested in a homeplace, a prized personal possession, or, especially, in another person, find it immensely difficult to give them up....Because they were made at a time of life when we were utterly dependent on them, the love attachments of infancy have inordinate power over us, more than any other emotional investment.

We belong to that order of mammals, the primates, distinguished by its propensity for repeated single litters, intense parental care, long life-spans, late sexual maturity, and a complex and extensive social existence... Our protracted biological and psychological helplessness, which extends well into the third year of life, intensifies the bond between infant and parents, making possible a sense of generational continuity. In contrast to other primates these bonds are not obliterated after sexual maturity.

The invisible bond that gives the baby rein to discover his place in the world also brings the creeping baby back to home base....In this way he recharges himself. He refuels on the loving energies that flow to him from his mother. Then he's off for another foray of adventure and exploration.

It didn't take elaborate experiments to deduce that an infant would die from want of food. But it took centuries to figure out that infants can and do perish from want of love.

Schoolchildren make up their own rules and enforce their own conformities. They feel safest when leisure time is rationed and dosed. They like to wear uniforms, and they frown on personal idiosyncrasies. Deviance is the mark of an outsider.

Fathers have a special excitement about them that babies find intriguing. At this time in his life an infant counts on his motherfor rootedness and anchoring. He can count on his father to be just different enough from a mother. Fathers embody a delicious mixture of familiarity and novelty. They are novel without being strange or frightening.

What eleven- to thirteen-year-old boys fear is passivity of any kind. When they do act passively we can be fairly certain that it is an act of aggression designed to torment a parent or teacher. . . . Mischief at best, violence at worst is the boy's proclamation of masculinity.