Analogy
Pattern
A:B :: C:D — proportional extended comparison
Definition
An extended comparison explaining one thing in terms of another to clarify or persuade, often using proportional reasoning.
Examples
Example 1
Just as a sword is the weapon of a warrior, a pen is the weapon of a writer.
A classic structural analogy mapping the relationship between tool and practitioner across two domains
Example 2
Explaining the internet to someone in 1985 is like explaining electricity to someone in 1785 — the concept is simple but the implications are unfathomable.
An extended analogy that uses temporal displacement to illuminate the gap between invention and comprehension
Example 3
A good speech is like a pencil; it has to have a point.
Attributed to various
The analogy works because "point" carries meaning in both domains simultaneously
AI Detection Note
AI can produce analogies but often overextends them without acknowledging where they break down. AI analogies also tend to be conventional rather than illuminating — they explain the familiar with the familiar.
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