The family is constantly changing, as each member changes. Some changes we recognize as developments, and the pleasure they bringusually makes us more adaptable. Some changes threaten, or disappoint other members, who may try to resist the change, or punish someone for changing.

Adolescence has been recognised as a stage of human development since medieval times--long, long before the industrial revolution--and, as it is now, has long been seen as a phase which centers on the fusion of sexual and social maturity. Indeed, adolescence as a concept has as long a history as that of puberty, which is sometimes considered more concrete, and hence much easier to name and to recognize.

Sexual activity, for women, has a history of vulnerability, in a way it simply does not have for men. The mother has to teach thishidden text to her daughter. The mother's warnings, her attempts to halt sexual development in her daughter, are not so much signs of disapproval or envy, but of fear.

Preoccupied with her self, the adolescent sees enormous changes, whereas the parent sees the child she knew all along. For the parent, new developments are superficial and evanescent. For the adolescent, they are thrilling and profound.

Insults from an adolescent daughter are more painful, because they are seen as coming not from a child who lashes out impulsively,who has moments of intense anger and of negative feelings which are not integrated into that large body of responses, impressions and emotions we call 'our feelings for someone,' but instead they are coming from someone who is seen to know what she does.

Adolescents, for all their self-involvement, are emerging from the self-centeredness of childhood. Their perception of other people has more depth. They are better equipped at appreciating others' reasons for action, or the basis of others' emotions. But this maturity functions in a piecemeal fashion. They show more understanding of their friends, but not of their teachers.

Adolescents swing from euphoric self-confidence and a kind of narcissistic strength in which they feel invulnerable and even immortal, to despair, self-emptiness, self-deprecation. At the same time they seem to see an emerging self that is unique and wonderful, they suffer an intense envy which tears narcissism into shreds, and makes other people's qualities hit them like an attack of lasers.