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.

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.

It is a human circumstance that when we are born we have not yet come into existence. We are lured into our special human existence by a mothering presence that gratifies our innate urges to be suckled, held, rocked, caressed. But that same gratifying presence puts limits on desire and rations satisfaction. In this sense the mother is also the first lawgiver.

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.

By directing our sentiments, passions, and reason toward the common human plight, imagination grants us the advantages of a moralexistence. What we surrender of innocent love of self is exchanged for the safeties and pleasures of belonging to a larger whole. We are born dependent, but only imagination can bind our passions to other human beings.

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.

Another potentiality of our irrepressible juvenility is a capacity to maintain until the onset of senility an active creative interaction with our environment. We persist in exploring, investigating, inventing, discovering. In these respects humans of all eras, in all societies, all ages of life, are more like baby chimps and not at all like the sedate and rigidly conforming adult chimpanzee, who hasn't changed much since she was five or six years old.