A sovereign, sincerely devout, is commonly dangerous to the state. Credulity always supposes a contracted mind; devotion generally absorbs the attention, which a prince should pay to the government of his people. Obsequious to the suggestions of his priests, he becomes the sport of their caprices, the favourer of their quarrels, and the instrument and accomplice of their follies, which he imagines to be of the greatest importance. Among the most fatal presents, which religion has made the world, ought to be reckoned those devout and zealous monarchs, who, under an idea of working for the welfare of their subjects, have made it a sacred duty to torment, persecute, and destroy those, who thought differently from themselves. A bigot, at the head of an empire, is one of the greatest scourges. A single fanatical or knavish priest, listened to by a credulous and powerful prince, suffices to put a state in disorder.

In almost all countries, priests and pious persons are intrusted with forming the minds and hearts of young princes, destined to govern nations. What qualifications have instructors of this stamp! By what interests can they be animated? Full of prejudices themselves, they will teach their pupil to regard superstition, as most important and sacred; its chimerical duties, as most indispensable, intolerance and persecution, as the true foundation of his future authority. They will endeavour to make him a party leader, a turbulent fanatic, a tyrant; they will early stifle his reason, and forewarn him against the use of it; they will prevent truth from reaching his ears; they will exasperate him against true talents, and prejudice him in favour of contemptible ones; in short, they will make him a weak devotee, who will have no idea either of justice or injustice, nor of true glory, nor of true greatness, and who will be destitute of the knowledge and virtues necessary to the government of a great nation. Such is the plan of the education of a child, destined one day to create the happiness or misery of millions of men!