I am aware, Madam, that devotion in you does not produce effects injurious to others; but I fear that it is only more injurious to yourself. The goodness of your heart, the sweetness of your disposition, and the beneficence which displays itself in all your conduct, are all so great that even religion does not impel you to any dangerous excesses. Nevertheless, devotion often causes strange metamorphoses, Unquiet, agitated, miserable within yourself, it is to be feared that your temperament will change, that your disposition will become acrimonious, and that the vexatious ideas over which you have so long brooded will sooner or later produce a disastrous influence upon those who approach you. Does not experience constantly show us that religion effects changes of this kind? What are called _conversions_, what devotees regard as special acts of divine grace, are very often only lamentable revolutions by which real vices and odious qualities are substituted for amiable and useful characteristics. By a deplorable consequence of these pretended miracles of grace we frequently see sorrow succeed to enjoyment, a gloomy and unhappy state to one of innocent gayety, lassitude and chagrin to activity and hilarity, and slander, intolerance, and zeal to indulgence and gentleness; nay, what do I say? cruelty itself to humanity. In a word, superstition is a dangerous leaven, that is fitted to corrupt even the most honest hearts. Do you not see, in fact, the excesses to which fanaticism and zeal drive the wisest and best meaning men? Princes, magistrates, and judges become inhuman and pitiless as soon as there is a question of the interests of religion. Men of the gentlest disposition, the most indulgent, and the most equitable, upon every other matter, religion transforms to ferocious beasts. The most feeling and compassionate persons believe themselves in conscience obliged to harden their hearts, to do violence to their better instincts, and to stifle nature, in order to show themselves cruel to those who are denounced as enemies to their own manner of thinking. Recall to your mind, Madam, the cruelties of nations and governments in alternate persecutions of Catholics or Protestants, as either happened to be in the ascendant. Can you find reason, equity, or humanity in the vexations, imprisonments, and exiles that in our days are inflicted upon the Jansenists? And these last, if ever they should attain in their turn the power requisite for persecution, would not probably treat their adversaries with more moderation or justice. Do you not daily see individuals who pique themselves upon their sensibility un-blushingly express the joy they would feel at the extermination of persons to whom they believe they owe neither benevolence nor indulgence, and whose only crime is a disdain for prejudices that the vulgar regard as sacred, or that an erroneous and false policy considers useful to the state? Superstition has so greatly stifled all sense of