'Yo!' and 'Lo!' the Pragmatic Topography of the Space of Reasons - Hardcoverby Rebecca Kukla (Author), Mark Lance (Author) Much of twentieth century philosophy was organized around the "linguistic turn," in which metaphysical and epistemological issues were approached through an analysis of language. This turn was marked by two assumptions: that it was primarily the semantics of language that was relevant to broader philosophical issues, and that declarative assertions were the only verbal acts of serious philosophical