When Voltaire, the courageous old philosopher, playwright, historian and novelist, and the great enemy of all religious and political tyranny, began to throw his bombs of criticism at everything connected with the Established Order of Things, the whole French world applauded him and his theatrical pieces played to standing room only. When Jean Jacques Rousseau waxed sentimental about primitive man and gave his contemporaries delightful descriptions of the happiness of the original inhabitants of this planet, (about whom he knew as little as he did about the children, upon whose education he was the recognised authority,) all France read his "Social Contract" and this society in which the king and the state were one, wept bitter tears when they heard Rousseau's appeal for a return to the blessed days when the real sovereignty had lain in the hands of the people and when the king had been merely the servant of his people. When Montesquieu published his "Persian Letters" in which two distinguished Persian travellers turn the whole existing society of France topsy-turvy and poke fun at everything from the king down to the lowest of his six hundred pastry cooks, the book immediately went through four editions and assured the writer thousands of readers for his famous discussion of the "Spirit of the Laws" in which the noble Baron compared the excellent English system with the backward system of France and advocated instead of an absolute monarchy the establishment of a state in which the Executive, the Legislative and the Judicial powers should be in separate hands and should work independently of each other. When Lebreton, the Parisian book-seller, announced that Messieurs Diderot, d'Alembert, Turgot and a score of other distinguished writers were going to publish an Encyclopaedia which was to contain "all the new ideas and the new science and the new knowledge," the response from the side of the public was most satisfactory, and when after twenty-two years the last of the twenty-eight volumes had been finished, the somewhat belated interference of the police could not repress the enthusiasm with which French society received this most important but very dangerous contribution to the discussions of the day.