Voltaire had reached Frankfort. His niece, Madame Denis, came thither to meet him. He conceived himself secure from the power of his late master, when he was arrested by order of the Prussian president. The precious volume was delivered up. But the Prussian agents had, no doubt, been instructed not to let Voltaire escape without some gross indignity. He was confined twelve days in a wretched hovel. Sentinels with fixed bayonets kept guard over him. His niece was dragged through the mire by the soldiers. Sixteen hundred dollars were extorted from him by his insolent jailers. It is absurd to say that this outrage is not to be attributed to the King. Was anybody punished for it? Was anybody called in question for it? Was it not consistent with Frederic's character? Was it not of a piece with his conduct on other similar occasions? Is it not notorious that he repeatedly gave private directions to his officers to pillage and demolish the houses of persons against whom he had a grudge, charging them at the same time to take their measures in such a way that his name might not be compromised? He acted thus towards Count Bruhl in the Seven Years' War. Why should we believe that he would have been more scrupulous with regard to Voltaire?
When at length the illustrious prisoner regained his liberty, the prospect before him was but dreary. He was an exile both from the country of his birth and from the country of his adoption. The French government had taken offence at his journey to Prussia, and would not permit him to return to Paris; and in the vicinity of Prussia it was not safe for him to remain.
He took refuge on the beautiful shores of Lake Leman. There, loosed from every tie which had hitherto restrained him, and having little to hope or to fear from courts and churches, he began his long war against all that, whether for good or evil, had authority over man; for what Burke said of the Constituent Assembly was eminently true of this its great forerunner: Voltaire could not build; he could only pull down; he was the very Vitruvius of ruin. He has bequeathed to us not a single doctrine to be called by his name, not a single addition to the stock of our positive knowledge. But no human teacher ever left behind him so vast and terrible a wreck of truths and falsehoods, of things noble and things base, of things useful and things pernicious. From the time when his sojourn beneath the Alps commenced, the dramatist, the wit, the historian, was merged in a more important character. He was now the patriarch, the founder of a sect, the chief of a conspiracy, the prince of a wide intellectual commonwealth. He often enjoyed a pleasure dear to the better part of his nature, the pleasure of vindicating innocence which had no other helper, of repairing cruel wrongs, of punishing tyranny in high places. He had also the satisfaction, not less acceptable to his ravenous vanity, of hearing terrified Capuchins call him the Anti-christ. But whether employed in works of benevolence, or in works of mischief, he never forgot Potsdam and Frankfort; and he listened anxiously to every murmur which indicated that a tempest was gathering in Europe, and that his vengeance was at hand.