The brain of children may be compared to a lighted wax taper, situated in a place which is exposed to the wind--its flame is perpetually flickering. A child asks you a question, and before you can answer, its eyes are directed towards the cieling: it counts all the figures that are carved there, or all the bits of glass which compose the window: if you wish to bring it back to the first subject of discussion, you vex it as much as if you confined it in prison. Thus great care is required in managing the organs before they assume a determined inclination: answer every question promptly, and leave the child to put others as it pleases. Gratify only the curiosity which it evinces, and lay up in the memory a mass of sound materials. The time will come, when these impressions will be regularly arranged, and the brain having more consistency, the child will reason on the consequences. Nevertheless, be attentive to correct when the reasoning is fallacious; and to convince it, without embarrassment, as an opportunity offers, in what a wrong consequence consists. Let a child amuse itself freely, and mingle instruction with amusement: let wisdom be introduced at proper intervals, and under an agreeable form; and take care not to fatigue it by a precision which is both formal and injudicious. If a child entertains sad and dismal notions of virtue, if liberty and irregularity present themselves in a seducing manner, every thing is lost, and your labour is in vain. Never suffer it to be flattered by little contemptible associates, or people without character or worth: we naturally love the manners and sentiments of those whom we regard; and the pleasure which is sometimes taken in the company of disreputable people, begets, by degrees, a love of those pernicious habits which renders _them_ so truly contemptible. In order to conciliate children to people of real estimable character, make them reflect on their excellence and utility, their sincerity, their modesty, their disinterestedness, their fidelity, their discretion, but above all their _piety_, which is the foundation of the rest. If a child has any thing about it revolting or offensive, you must observe to it that "piety does not produce such defects: when it is perfect, it destroys, or at least softens them." But, after all, we must not persist in making children admire certain pious characters whose exterior deportment is disgusting. Although you are particularly anxious to regulate your own conduct with the utmost circumspection and nicety, do not imagine that children will fancy you faultless: oftentimes your slightest imperfections will be noticed by them.