Besides some issues connected to the philosophical style of Documentalità by Maurizio Ferraris (2009), the paper discusses two points of Ferraris’ approach: 1) the relation between ontology and epistemology and 2) the relation between letter and spirit. 1) Is it true, as Ferraris claims in his theory of social world, that ontology is completely independent from epistemology? Since it is a discourse on being, is not ontology inextricably linked with language and hence with some kind of epistemological issue that language always implies? 2) And is it really true that letter is characterized by a sort of primacy on spirit? Does not this thesis presuppose a radical separation between letter and spirit which risks to undermine the basic monism of Ferraris’ philosophical proposal?