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.
Louise J. KaplanWe 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.
Louise J. KaplanParadoxically, 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.
Louise J. KaplanThe adolescent frequently supposes that she is breaking out of the confines of her mundane, schoolgirl existence simply in order to break rules and defy authority. . . . She rids herself of the "oughts" and "musts" that convert every minor infraction into a sin of omission or commission. It certainly does not occur to her or to her family that by questioning the moral standards she erected as a child she is taking the first steps in her journey toward a firmer, more reasonable, less harsh, more ethical form of conscience.
Louise J. Kaplan