his attempts at instituting tolerance with his Edict of Nantes. La Pucelle, on the other hand, is a burlesque on the legend of Joan of Arc. Prose Many of Voltaire's prose works and romances, usually composed as pamphlets, were written as polemics. Candide attacks the passivity inspired by Leibniz's philosophy of optimism through the character Pangloss's frequent refrain that circumstances are the "best of all possible worlds". L'Homme aux quarante ecus (The Man of Forty Pieces of Silver) addresses social and political ways of the time; Zadig and others, the received forms of moral and metaphysical orthodoxy; and some were written to deride the Bible. In these works, Voltaire's ironic style, free of exaggeration, is apparent, particularly the restraint and simplicity of the verbal treatment. Candide in particular is the best example of his style. Voltaire also has—in common with Jonathan Swift—the distinction of paving the way for science fiction's philosophical irony, particularly in his Micromégas and the vignette "Plato's Dream" (1756). In general, his criticism and miscellaneous writing show a similar style to Voltaire's other works. Almost all of his more substantive works, whether in verse or prose, are preceded by prefaces of one sort or another, which are models of his caustic yet conversational tone. In a vast variety of nondescript pamphlets and writings, he displays his skills at journalism. In pure literary criticism his principal work is the Commentaire sur Corneille, although he wrote many more similar works—sometimes (as in his Life and Notices of Molière) independently and sometimes as part of his Siècles. Voltaire's works, especially his private letters, frequently urge the reader: "", or "crush the infamous". The phrase refers to contemporaneous abuses of power by royal and religious authorities, and the superstition and intolerance fomented by the clergy. He had seen and felt these effects in his own exiles, the burnings of his books and those of many others, and in the atrocious persecution of Jean Calas and François-Jean de la Barre. He stated in one of his most famous quotes that "Superstition sets the whole world in flames; philosophy quenches them." The most oft-cited Voltaire quotation is apocryphal. He is incorrectly credited with writing, "I disapprove of what you say, but I will defend to the death your right to say it." These were not his words, but rather those of Evelyn Beatrice Hall, written under the pseudonym S. G. Tallentyre in her