In Russia, Catherine the Great had been reading Voltaire for sixteen years prior to becoming Empress in 1762. In October 1763, she began a correspondence with the philosopher that continued till his death. The content of these letters has been described as being akin to a student writing to a teacher. Upon Voltaire's death, the Empress purchased his library, which was then transported and placed in The Hermitage. Alexander Herzen remarked that "The writings of the egoist Voltaire did more for liberation than those of the loving Rousseau did for brotherhood." In his famous letter to N. V. Gogol, Vissarion Belinsky wrote that Voltaire "stamped out the fires of fanaticism and ignorance in Europe by ridicule."