If in place of stifling human reason, as, is too much done, its perfectibility were studied; if in place of deluging the world with visionary notions, truth were inculcated; if in place of pleading a supernatural morality, a morality agreeable to humanity and resulting from experience were preached, we should no longer be the dupes of imaginary theories, nor of terrifying fables as the bases of virtue. Every one would then perceive that it is to the practice of virtue, to the faithful observation of the duties of morality, that the happiness of individuals and of society is to be traced. Is he a husband? He will perceive that his essential happiness is to show kindness, attachment, and tenderness to the companion of his life, destined by his own choice to share his pleasures and endure his misfortunes. And, on the other hand, she, by consulting her true interests, will perceive that they consist in rendering homage to her husband, in interdicting every thought that could alienate her affections, diminish her esteem and confidence in him. Fathers and mothers will perceive that their children are destined to be one day their consolation and support in old age, and that by consequence they have the greatest interest in inspiring them in early life with sentiments of which they may themselves reap the benefit when age or misfortune may require the fruits of those advantages that result from a good education. Their children, early taught to reflect on these things, will find their interest to lie in meriting the kindness of their parents, and in giving them proofs that the virtues they are taught will be communicated to their posterity. The master will perceive that, to be served with affection, he owes good will, kindness, and indulgence to those at whose hands he would reap advantages, and by whose labor he would increase his prosperity; and servants will discover how much their happiness depends on fidelity, industry, and good temper in their situations. Friends will find the advantages of a kindred heart for friendship, and the reciprocity of good offices. The members of the same family will perceive the necessity of preserving that union which nature has established among them, to render mutual benefits in prosperity or in adversity. Societies, if they reflect on the end of their association, will perceive that to secure it they must observe good faith and punctuality in their engagements. The citizen, when he consults his reason, will perceive how much it is necessary, for the good of the nation to which he belongs, that he should exert himself to advance its prosperity, or, in its misfortunes, to retrieve its glory. By consequence every one in his sphere, and using his faculties for this great end, will find his own advantage in restraining the bad as dangerous, and opposing enemies to the state as enemies to himself.