"Light travels faster than sound. This is why some people appear bright until you hear them speak"
About this Quote
As an educator and folklorist, Dundes is playing in a tradition of vernacular wit: the proverb that teaches by stinging. There’s a classroom cadence to it, too. It’s the kind of line that sounds like a harmless aside until you realize it’s a warning about cognition and status. “Bright” is the pivot: literal brightness, intellectual brightness, social brightness. We live in a culture that treats brightness as a visible trait, something you can read off a face, a wardrobe, a résumé font. Dundes punctures that faith with a punchline that implies the only honest test is speech: not the look of intelligence, but its performance.
The subtext is cynically democratic. Anyone can be misread as impressive; talk is where the hierarchy reasserts itself. It’s also a jab at our own complicity: we want to believe what we see, because it’s easy and flattering to our instincts. The laugh comes with a wince because the target isn’t just “some people.” It’s the audience’s habit of mistaking shine for substance.
Quote Details
| Topic | Witty One-Liners |
|---|---|
| Source | Later attribution: Quotationary - The A-Z Book of Quotations (Nasser Amiri, 2024) modern compilationISBN: 9780722354841 · ID: M0NZEQAAQBAJ
Evidence:
... Light travels faster than sound. This is why some people appear bright until you hear them speak. Alan Dundes The eyes those silent tongues of love. Miguel de Cervantes Not being heard is no reason for silence. Victor Hugo I learn a ... |
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Citation Formats
APA Style (7th ed.)
Dundes, Alan. (2026, January 13). Light travels faster than sound. This is why some people appear bright until you hear them speak. FixQuotes. https://fixquotes.com/quotes/light-travels-faster-than-sound-this-is-why-some-35116/
Chicago Style
Dundes, Alan. "Light travels faster than sound. This is why some people appear bright until you hear them speak." FixQuotes. January 13, 2026. https://fixquotes.com/quotes/light-travels-faster-than-sound-this-is-why-some-35116/.
MLA Style (9th ed.)
"Light travels faster than sound. This is why some people appear bright until you hear them speak." FixQuotes, 13 Jan. 2026, https://fixquotes.com/quotes/light-travels-faster-than-sound-this-is-why-some-35116/. Accessed 10 Feb. 2026.



