French writer Guillaume Raynal attacked slavery in his history of European colonization. He warns, “the Negroes only want a chief, sufficiently courageous, to lead them on to vengeance and slaughter.”[20] Raynal’s Enlightenment philosophy went deeper than a prediction, and reflected many French Enlightenment philosophies, including those of Rousseau and Diderot, even though it was written thirteen years before the “Declaration of the Rights of Man and of the Citizen.” The declaration, in contrast, highlighted freedom and liberty but still allowed for slaves to be characterized as property.