Voltaire perceived the French bourgeoisie to be too small and ineffective, the aristocracy to be parasitic and corrupt, the commoners as ignorant and superstitious, and the Church as a static and oppressive force useful only on occasion as a counterbalance to the rapacity of kings, although all too often, even more rapacious itself. Voltaire distrusted democracy, which he saw as propagating the idiocy of the masses. Voltaire long thought only an enlightened monarch could bring about change, given the social structures of the time and the extremely high rates of illiteracy, and that it was in the king's rational interest to improve the education and welfare of his subjects. But his disappointments and disillusions with Frederick the Great changed his philosophy somewhat, and soon gave birth to one of his most enduring works, his novella "Candide, ou l'Optimisme" ("Candide, or Optimism," 1759), which ends with a new conclusion of quietism: "It is up to us to cultivate our garden." His most polemical and ferocious attacks on intolerance and religious persecutions indeed began to appear a few years later. "Candide" was also burned, and Voltaire jokingly claimed the actual author was a certain 'Demad' in a letter, where he reaffirmed the main polemical stances of the text.