The morality of the clergy, on the other hand, appears calculated to keep nature always at variance with herself, for it is almost always without effect even on the priesthood. Their chimeras serve but to torture weak minds, and to set the passions at war with nature and their dogmas. When this morality professes to restrain the wicked, to curb the passions of men, it operates in opposition to the established laws of natural religion; for by preserving all its rigor, it becomes impracticable; and it meets with real devotees only in some few fanatics who have renounced nature, and who would be singular, even if their oddities were injurious to society. This morality, adopted for the most part by devotees, without eradicating their habits or their natural defects, keeps them always in a state of opposition even with themselves. Their life is a round of faults and of scruples, of sins and remorse, of crimes and expiations, of pleasures which they enjoy, but for which they again reproach themselves for having tasted. In a word, the morality of superstition necessarily carries with it into the heart and the family of its devotees inward distress and affliction; it makes of enthusiasts and fanatics scrupulous devotees; it makes a great many insensible and miserable; it renders none perfect, few good; and those only tolerable whom nature, education, and habit had moulded for happiness. It is our temperament which decides our condition; the acquisition of moderate passions, of honest habits, sensible opinions, laudable examples, and practical virtues, is a difficult task, but not impossible when undertaken with reason for one's guide. It is difficult to be virtuous and happy with a temperament so ardent as to sway the passions to its will. One must in calmness consult reason as to his duty. Nature, in giving us lively passions and a susceptible imagination, has made us capable of suffering the instant we transgress her bounds. She then renders us necessary to ourselves, and we cannot proceed to consult our real interest if we continue in indulgence that she forbids. The passions which reason cannot restrain are not to be bridled by religion. It is in vain that we hope to derive succors from religion if we despise and refuse what nature offers us. Religion leaves men just such as nature and habit have made them; and if it produce any changes on some few, I believe I have proved that those changes are not always for the better.