Discourse – the cultural action “by which language mediates knowledge” (Smiraglia 2014a, 27). “Epistemology is the division of philosophy that investigates the nature and origin of knowledge. In philosophy at large, epistemology is central because it embraces the theory of knowledge itself. …The philosophical process engages a discourse in which skeptical challenges to any definition must be rebuked and therein lies the dilemma, for how can we study that which we cannot even define?” (20).