What is an example of a metaphor and analogy?

Metaphor: "All the world's a stage, / And all the men and women merely players" (Shakespeare, As You Like It, II.vii, c. 1599). Analogy: "Analyzing humor is like dissecting a frog: few people are interested and the frog dies of it" (commonly attributed to E.B. White via The New Yorker; the line has also been ascribed to his wife Katharine White and, less plausibly, to Mark Twain, so the attribution is standard but not airtight). A metaphor names one thing as another and lets the transfer do the work; an analogy spells the comparison out and explains why it holds. The popular summary is that metaphor is short, analogy is long, but length isn't the test. Shakespeare's stage figure runs forty lines without becoming an analogy, and a one-sentence analogy is still an analogy. The real difference is whether the comparison is asserted or argued.

How do you tell a metaphor from an analogy in your own writing?

The working test: a metaphor asserts identity. An analogy argues relational similarity.

Take a single comparison and write it both ways. Romeo, looking up at Juliet's balcony, says "It is the east, and Juliet is the sun" (Shakespeare, Romeo and Juliet, II.ii, c. 1595). That's a metaphor. It claims identity and trusts you to finish the transfer.

Now write the same comparison as an analogy: Juliet is to Romeo's world as the sun is to the sky. She is the source of light he orients to, the presence that makes every other thing visible, and the absence that turns the rest of the night dark. The comparison is now visible. The shared structure has been named. The reader is being shown why the transfer holds, not asked to make it.

Length is a symptom, not the test. Extended metaphors stay metaphors as long as the identity claim never gets unpacked into a because they share X explanation. Shakespeare's stage figure runs forty lines, populates the world with seven ages of man, and never argues the comparison. It just keeps asserting.

	Metaphor	Analogy
What it claims	Identity. X is Y.	Relational similarity. X is to A as Y is to B.
How it works	Transfer. The reader completes the comparison.	Explanation. The writer names the shared relationship.
Length	Any. From two words to forty lines.	Any. From one sentence to several paragraphs.
Test in practice	Does the reader complete the comparison, or does the writer?	Is the shared structure asserted, or is it argued?

Is a metaphor a type of analogy?

Scholars disagree, and the split changes which test you reach for.

In classical and rhetorical usage, the two are separate. Metaphor is a trope (a figure of meaning, a word used to stand for something other than itself). Analogy is a form of argument by similitude, a way of reasoning from a known case to an unknown one. On this view, the figures sit in different departments of the craft and shouldn't be confused.

In cognitive linguistics, especially after George Lakoff and Mark Johnson's Metaphors We Live By (1980), metaphor is treated as a kind of analogical mapping. Lakoff and Johnson argued that ordinary expressions like argument is war ("he attacked my position," "I defended my claim") or time is money ("you're wasting my time," "I can't afford the delay") aren't decorative comparisons but structured projections from one domain onto another. On that account, the everyday metaphor is structurally an analogy whose comparison has been compressed into an identity claim.

Both views are defensible. The rhetorical view keeps the categories crisp, which is what you want when you are choosing a figure at the desk. The cognitive view explains why so many metaphors feel systematic rather than ad hoc, which is what you want when you are trying to understand why a comparison feels native to the language. Pick the frame that matches what you are doing.

Did you know? Aristotle defined metaphor in the Poetics (21, c. 335 BCE) as the transfer of a name kata analogian, "according to analogy." The oldest surviving theorist of metaphor already treated it as a species of analogy. Lakoff and Johnson were saying the same thing two and a half millennia later, in modern dress.

When should you reach for a metaphor instead of an analogy?

Metaphor when the reader can complete the transfer alone. Analogy when the target is unfamiliar enough that the comparison only works if the shared structure gets named.

A metaphor flatters the reader who gets it. The source domain has to be vivid and culturally shared, the connection has to land without explanation, and the writer has to trust that it will. "Juliet is the sun" works because the reader knows what the sun does in a sky. The figure doesn't need an underwriter.

An analogy serves the reader who needed to be shown. Richard Feynman, teaching electricity in The Feynman Lectures on Physics (1964), wrote that "electricity is some kind of liquid because we can fill wires with it as we fill a pipe with water." The pipe-and-water analogy earns its length because the target (electrical current) is genuinely unfamiliar and the source (water in pipes) is genuinely familiar. The explanatory work of naming the shared structure (flow rate, pressure, capacity) is precisely what teaches the reader. A bare metaphor like "electricity is a river" would not have done that job. The analogy works because it argues.

Tie the choice back to who is reading. If the figure is doing aesthetic or compressive work for a reader who can already do the work, pick metaphor. If the figure is doing teaching work for a reader who can't yet, pick analogy. Neither figure is more sophisticated than the other; they answer different questions about how much work the writer is asking the reader to do.

What about simile? Where does it sit?

A simile is an explicit comparison signaled by like or as: "My love is like a red, red rose" (Burns, "A Red, Red Rose," 1794). It shares the metaphor's brevity and the analogy's overtness.

Structurally, simile sits closer to metaphor. It compares a single thing to a single thing, doesn't argue a shared structure, and trusts the reader to feel the resemblance. Rhetorically, it sits closer to analogy. The comparison is on the surface (the like or as puts it there), not asserted as identity.

You can hear the choice in the difference between "Juliet is the sun" and "Juliet is like the sun." The metaphor collapses the distance between the two things. The simile holds them apart and points at the resemblance. Simile is the figure you reach for when you don't want to claim more than the comparison can actually carry.

The test for separating metaphor and simile comes down to one move: is the comparison asserted as identity, or marked as a likeness? That single distinction resolves most of the cases working writers second-guess. The asserted-versus-argued test for separating metaphor and analogy is the version you reach for when you don't have a sourced pair in front of you to do the explaining.