The child is born, and then, in a higher and more enlarged and more independent state of existence, commences drawing to itself the materials and substances necessary for its growth and unfolding. It draws in its mother's milk, it draws in the air, and it builds up in itself the unseen forces of life. Nature, true to her mission, goes on unfolding the child, and teaches it daily and hourly the lessons best adapted to its condition. In a few days after it is born, its powers of observation begin to show signs of life and action, and it can distinguish light from darkness; in a few weeks its mother and nurse are known--in a few months quickened intelligence displays itself in all its actions; in about twelve months it has learned the most difficult art of balancing itself so as to walk, and also to speak a few words; at from two to two and a half years of age, only thirty months from birth, it has learned a language which it speaks, and has become familiar with a vast number of things surrounding it. From a state of entire ignorance it has in thirty months learned what would fill volumes. Horses, cows, pigs, dogs, toys, whips, birds, people, trees, houses, fruit, food, clothes, music, sounds, parents, friends, and a thousand other things are all familiar to it. Without professional teachers, almost without effort, all this valuable and indispensable knowledge has been acquired, through the unconscious adoption on the part of the mother of the true system of education--_e duco_--I lead forth, and hence nurse, cherish, build up, develop. The child feels or reaches out, like the tendril, to the material world, seeking to make itself acquainted with that world; even the young infant soon begins to observe closely, soon knows its mother from all other persons, clings to her, loves her above all; soon it recognizes light from darkness, sweet from bitter; soon, when it sees a dog it will recognize it and jump with delight almost out of its mother's arms; it will show an eager delight to watch the motions of the horse, and imitates the sounds employed by adults when driving. He spreads forth the tentacles of his feeble mind for knowledge, and his mind "grows by what it feeds upon," and it is for those intrusted with the infant's training to respond intelligently to the child's desire, to place within its reach the mental food adapted to its digestion, to nourish and develop it so that its mental hunger shall be at once gratified and excited anew.