I. Philosophy
Traditional epistemology considers reason primarily to be a discursive faculty (Gk διάνοια/diánoia; λόγος/¶ lógos; Lat. ratio), in part to distinguish it from intellect as an intuitive faculty (Capacity). This distinction also implies a ranking: the discursive faculty either proceeds syllogistically as “demonstration” (ἀπόδειξις/apódeixis) based on ultimate principles that cannot themselves be deduced by reasoning (Arist. Eth…