Common Quote by Umberto Eco
“The lunatic is all idée fixe, and whatever he comes across confirms his lunacy. You can tell him by the liberties he takes with common sense, by his flashes of inspiration, and by the fact that sooner or later he brings up the Templars.”
About This Quote
Source Novel: The Name of the Rose, 1980
A lunatic’s fixed idea is reinforced by selective evidence and eccentric beliefs, revealing how madness can be self‑validating.
In simple terms: Fixed ideas get reinforced by odd evidence.
Key Takeaway
Question assumptions and seek broader evidence.
Themes
madness
confirmation bias
logic
history
beliefs
Mood
skeptical
analytical
Type
philosophical
literary
When to use this quote
- critical thinking
- debate
- historical research
- psychology
- education
Key Concepts
Cognitive bias
epistemology
historical myth
Questions to Reflect On
- How do you recognize when a belief is self‑reinforcing?
- What role does history play in shaping perceived madness?
A Different Perspective
Overemphasis on eccentricity may ignore rational explanations.
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