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.

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.

From the beginning moments of life, the urges for each of us to become a self in the world are there--in the liveliness of our innate growth energies, in the vitality of our stiffening-away muscles, in our looking eyes, our listening ears, our reaching-out hands.

As he walks away on his own two feet--the toddler's body-mind has reached its moment of perfection. The world is his and he the mighty conqueror of all he beholds.... As long as mother sticks around in the wings, the mighty acrobat confidently performs his trick of twirling in circles, walking on tiptoe, jumping, climbing, staring, naming. He is joyous, filled with his grandeur and wondrous omnipotence.

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.

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.