A cognitive approach to Plato’s epistemology in the Republic

What is it about?

This paper examines what a cognitive approach to Plato’s Republic can reveal about the philosopher’s own understanding of what is modernly termed 'cognition'. After outlining the methodological framework of Conceptual Metaphor Theory, the discussion explores two distinct ways in which Plato conceptualises 'cognition' in the central books of the Republic, grounded in the experiences of dreaming and waking on the one hand, and sexual intercourse on the other. In the light of these metaphors, the paper offers a fresh interpretation of the concepts of dianoia and noesis in Book VI of the Republic.

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Photo by Vidar Nordli-Mathisen on Unsplash

Photo by Vidar Nordli-Mathisen on Unsplash

Why is it important?

This work is uniquely positioned at the intersection of classical philology and contemporary philosophy, contributing directly to the ongoing 'cognitive turn' in the humanities. What makes this study particularly timely and unique is its departure from traditional scholarship on Platonic imagery. While standard accounts tend to focus almost exclusively on Plato’s visual, architectural, or mathematical metaphors, this paper isolates two overlooked, highly experiential source domains—dreaming/waking and sexual intercourse—to unpack his core epistemological categories. By systematically applying Conceptual Metaphor Theory to these specific frameworks, the project moves beyond a merely aesthetic appreciation of Plato’s style. The difference this work makes lies in its capacity to offer a fresh reassessment of dianoia and noesis in Book VI of the Republic. Ultimately, it demonstrates that Plato’s figurative language is not a decorative rhetorical ornament, but the very conceptual scaffolding of his philosophy, thereby challenging the long-standing dichotomy between rational dialectic and literary narrative in ancient texts.