We humans undergo two major growth spurts: one during infancy and another from eleven to twelve until fifteen or sixteen--pubescence. Between the two is a relatively quiescent growth period in which most of the body takes a rest from growing while the brain continues to mature. This period of life is general referred to as childhood or, sometimes, latency.

The toddler must say no in order to find out who she is. The adolescent says no to assert who she is not.

It is an odd fact that what we now know of the mental and emotional life of infants surpasses what we comprehend about adolescents. . . . That they do not confide in us is hardly surprising. They use wise discretion in disguising themselves with the caricatures we design for them. And unfortunately for us, as for them, too often adolescents retain the caricatured personalities they had merely meant to try on for size.

Adolescence is the conjugator of childhood and adulthood.

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.

Other people--grandparents, sisters and brothers, the mother's best friend, the next-door neighbor--get to be familiar to the baby. If the mother communicates her trust in these people, the baby will regard them as delicious novelties. Anybody the mother trusts whom the baby sees often enough partakes a bit of the presence of the mother.

Young people...have more compassion and tenderness toward the elderly than most middle-aged adults. Nothing--not avarice, not pride, not scrupulousness, not impulsiveness--so disillusions a youth about her parents as the seemingly inhumane way they treat her grandparents.