It is by subjecting the immense revenues, lands, abbeys, and estates, which clerical bodies have levied upon the credulity of men, to just and equal taxation, as with other property; it is by rendering the church and state entirely distinct; it is by stripping the hierarchy of immunities not possessed by other citizens, and of privileges both chimerical and injurious; it is by rigorously exacting the same civil obedience alike from priests and people,--that government can be rightly administered, that justice can be impartially rendered, and that the nation, as a whole, can be trained to courage, activity, industry, intelligence, tranquillity, and patriotism. So long as there are two powers in a state, they will necessarily be at variance, and the one which arrogates the favor of the Almighty will have immense advantages over that which claims no authority above the earth. If both pretend to emanate from the same source, the people would not know which to believe; they would range themselves on each side; the combat would be furious, and the power of the government would be unable to maintain itself against the many heads of the ecclesiastical hydra. The magicians of Pharaoh yielded to the Jewish priests, and in conflicts between the church and state, the immunities of the priests,

"Like Aaron's serpent, swallowed all the rest."

Letters to Eugenia — Part 109

If such is the case, you will inquire, Madam, how can an enlightened civil power ever make obedient citizens of rebellious priests, who have so long possessed the confidence of the people, and who can with impunity render themselves formidable to any government? I reply, that in spite of the vigilant cares and the redoubled efforts of the priesthood, the people have begun to be more enlightened; they are becoming weary of the heavy yoke, which they would not have borne so long had they not believed it was imposed upon them by the Most High, and that it was necessary to their happiness. It is impossible for error to be eternal; it must give way to the power of truth. The priests, who think, know this well, and the whole ecclesiastical body continually declaim against all those who wish to enlighten the human race and unveil the conspiracies of their spiritual guides. They fear the piercing eyes of philosophy; they fear the reign of reason, which will never be that of tyranny or anarchy. Governments, then, ought not to share the fears of the clergy, nor render themselves the executors of their vengeance; they injure themselves when they sustain the cause of their turbulent rivals, who have ever been the enemies of civil polity and perturbers of the public repose. The magistrates of a state league themselves with their enemies when they form an alliance with the priesthood, or prevent the people from recognizing their errors.

Letters to Eugenia — Part 109