humanity of white Europeans. According to David Allen Harvey, Voltaire often invoked racial differences as a means to attack religious orthodoxy, and the Biblical account of creation. Other historians, instead, have suggested that Voltaire's support for polygenism was more heavily encouraged by his investments in the French Compagnie des Indes and other colonial enterprises that engaged in the slave trade. His most famous remark on slavery is found in Candide, where the hero is horrified to learn "at what price we eat sugar in Europe" after coming across a slave in French Guiana who has been mutilated for escaping, who opines that, if all human beings have common origins as the Bible taught, it makes them cousins, concluding that "no one could treat their relatives more horribly". Elsewhere, he wrote caustically about "whites and Christians [who] proceed to purchase negroes cheaply, in order to sell them dear in America". Voltaire has been accused of supporting the slave trade as per a letter attributed to him, although it has been suggested that this letter is a forgery "since no satisfying source attests to the letter's existence." In his Philosophical Dictionary, Voltaire endorses Montesquieu's criticism of the slave trade: "Montesquieu was almost always in error with the learned, because he was not learned, but he was almost always right against the fanatics and the promoters of slavery." Zeev Sternhell argues that despite his shortcomings, Voltaire was a forerunner of liberal pluralism in his approach to history and non-European cultures. Voltaire wrote, "We have slandered the Chinese because their metaphysics is not the same as ours ... This great misunderstanding about Chinese rituals has come about because we have judged their usages by ours, for we carry the prejudices of our contentious spirit to the end of the world." In speaking of Persia, he condemned Europe's "ignorant audacity" and "ignorant credulity". When writing about India, he declares, "It is time for us to give up the shameful habit of slandering all sects and insulting all nations!" In Essai sur les mœurs et l'esprit des nations, he defended the integrity of the Native Americans and wrote favorably of the Inca Empire. Appreciation and influence According to Victor Hugo: "To name Voltaire is to characterize the entire eighteenth century." Goethe regarded Voltaire as the greatest literary figure of modern times, and possibly of all time. According to Diderot, Voltaire's influence would extend far into the