Another reason for the increased self-centeredness of an adolescent is her susceptibility to humiliation. This brazen, defiant creature is also something tender, raw, thin-skinned, poignantly vulnerable. Her entire sense of personal worth can be shattered by a frown. An innocuous clarification of facts can be heard as a monumental criticism.

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.

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.

Another reason for the increased self-centeredness of an adolescent is her susceptibility to humiliation. This brazen, defiant creature is also something tender, raw, thin-skinned, poignantly vulnerable. Her entire sense of personal worth can be shattered by a frown. An innocuous clarification of facts can be heard as a monumental criticism.

In all times and in all places--in Constantinople, northwestern Zambia, Victorian England, Sparta, Arabia, . . . medieval France,Babylonia, . . . Carthage, Mahenjo-Daro, Patagonia, Kyushu, . . . Dresden--the time span between childhood and adulthood, however fleeting or prolonged, has been associated with the acquisition of virtue as it is differently defined in each society. A child may be good and morally obedient, but only in the process of arriving at womanhood or manhood does a human being become capable of virtue--that is, the qualities of mind and body that realize society's ideals.

Adolescents are the bearers of cultural renewal, those cycles of generation and regeneration that link our limited individual destinies with the destiny of the species.

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.