When the vital body is born at the age of seven a period of growth begins and a new motto, or relation rather, is established between parent and child. This may be expressed in the two words _Authority_ and _Discipleship_. In this period the child is taught certain lessons which it takes upon faith in the authority of its teachers, whether at home or at school, and as memory is a faculty of the vital body it can now memorize what is learned. It is therefore eminently teachable; particularly because it is unbiased by pre-conceived opinions which prevent most of us from accepting new views. At the end of this second period: from about twelve to fourteen, the vital body has been so far developed that puberty is reached. At the age of fourteen we have the birth of the desire body, which marks the commencement of self-assertion. In earlier years the child regards itself more as belonging to a family and subordinate to the wishes of its parents than after the fourteenth year. The reason is this: In the throat of the fœtus and the young child there is a gland called the thymus gland, which is largest before birth, then gradually diminishes through the years of childhood and finally disappears at ages which vary according to the characteristics of the child. Anatomists have been puzzled as to the function of this organ and have not yet come to any settled conclusion, but it has been suggested that before development of the red marrow bones, the child is not able to manufacture its own blood, and that therefore the thymus gland contains an essence, supplied by the parents, upon which the child may draw during infancy and childhood, till able to manufacture its own blood. That theory is approximately true, and as the family blood flows in the child, it looks upon itself as part of the family and not as an Ego. But the moment it commences to manufacture its own blood, the Ego asserts itself, it is no longer Papa’s girl or Mamma’s boy, it has an “I”-dentity of its own. Then comes the critical age when parents reap what they have sown. The mind has not yet been born, nothing holds the desire nature in check, and much, very much, depends upon how the child has been taught in earlier years and what example the parents have set. At this point in life self-assertion, the feeling “_I am myself_”, is stronger than at any other time and therefore authority should give place to _Advice_; the parent should practice the utmost tolerance, for at no time in life is a human being as much in need of sympathy as during the seven years from fourteen to twenty-one when the desire nature is rampant and unchecked.