"Havelock (1982) and Snell (l960) noted the ways that notions like *idea*, *mind*, and *word* developed and the ways in which words from the common vocabulary suddenly became the subject of analysis and reflection in classical Greek culture. Whereas for the Homeric Greeks notions like *justice* and *courage* were exemplified in the deeds of gods and hero, for the literate Greeks they became philosophical concepts. The writing system, Havelock argued, was partly responsible."
— David Olson, “How Writing Represents Speech”
