Letters To A Young Philosopher Number 3: The City As Metaphor For Philosophy

one useful analogy I've been using when discussing the field

It’s natural to come up with metaphors for all sorts of matters that we have a desire to understand. There are quite a few people, and not just wordsmiths like poets, novelists, rhetoricians, and critics, but also writers solidly placed in the field of philosophy, who consider drawing analogies and playing with metaphors to be something integral to our nature as human beings, Aristotle among them (as you’ll find if you read his Poetics or book 3 of his Rhetoric).