In the first place the thought of a need of nature with which the child is well acquainted turns his thoughts from the idea of a mysterious process. The accompanying ideas of pain and death cover it with a veil of sadness which deadens the imagination and suppresses curiosity; everything leads the mind to the results, not the causes, of child-birth. This is the information to which this answer leads. If the repugnance inspired by this answer should permit the child to inquire further, his thoughts are turned to the infirmities of human nature, disgusting things, images of pain. What chance is there for any stimulation of desire in such a conversation? And yet you see there is no departure from truth, no need to deceive the scholar in order to teach him. Your children read; in the course of their reading they meet with things they would never have known without reading. Are they students, their imagination is stimulated and quickened in the silence of the study. Do they move in the world of society, they hear a strange jargon, they see conduct which makes a great impression on them; they have been told so continually that they are men that in everything men do in their presence they at once try to find how that will suit themselves; the conduct of others must indeed serve as their pattern when the opinions of others are their law. Servants, dependent on them, and therefore anxious to please them, flatter them at the expense of their morals; giggling governesses say things to the four-year-old child which the most shameless woman would not dare to say to them at fifteen. They soon forget what they said, but the child has not forgotten what he heard. Loose conversation prepares the way for licentious conduct; the child is debauched by the cunning lacquey, and the secret of the one guarantees the secret of the other. The child brought up in accordance with his age is alone. He knows no attachment but that of habit, he loves his sister like his watch, and his friend like his dog. He is unconscious of his sex and his species; men and women are alike unknown; he does not connect their sayings and doings with himself, he neither sees nor hears, or he pays no heed to them; he is no more concerned with their talk than their actions; he has nothing to do with it. This is no artificial error induced by our method, it is the ignorance of nature. The time is at hand when that same nature will take care to enlighten her pupil, and then only does she make him capable of profiting by the lessons without danger. This is our principle; the details of its rules are outside my subject; and the means I suggest with regard to other matters will still serve to illustrate this.