"Plato, typical of persuasive writers, stated his view that truth is absolute and art mere illusion by the use of a powerful rhetorical device, his Allegory of the Cave." (#60 3225)

"Aristotle, on the other hand, saw poetry as having a positive value: "It is a great thing, indeed, to make proper use of the poetic forms,... But the greatest thing by far is to be a master of metaphor" (Poetics 1459a); "ordinary words convey only what we know already ; it is from metaphor that we can best get hold of something fresh" (Rhetoric 1410b)." (#60 3227)