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.

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.

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.

Infancy is the realm conveyed to us in dreams which look backward to the past. Adolescence, more like a work of art, is a prospective symbol of personal synthesis and of the future of humankind. Like a work of art that sets us on the pathway to new discoveries, adolescence promotes new meanings by mobilizing energies that were initially invested in the past.

In every adult human there still lives a helpless child who is afraid of aloneness.... This would be so even if there were a possibility for perfect babies and perfect mothers.

Adolescence is the conjugator of childhood and adulthood.