Paradoxically, the toddler's "No" is also a preliminary to his saying yes. It is a sign that he is getting ready to convert his mother's restrictions and prohibitions into the rules for behavior that will belong to him.

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.

Another potentiality of our irrepressible juvenility is a capacity to maintain until the onset of senility an active creative interaction with our environment. We persist in exploring, investigating, inventing, discovering. In these respects humans of all eras, in all societies, all ages of life, are more like baby chimps and not at all like the sedate and rigidly conforming adult chimpanzee, who hasn't changed much since she was five or six years old.

Children, even infants, are capable of sympathy. But only after adolescence are we capable of compassion.

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.

Normally an infant learns to use his mother as a "beacon of orientation" during the first five months of life. The mother's presence is like a fixed light that gives the child the security to move out safely to explore the world and then return safely to harbor.

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.