"Colorless green ideas sleep furiously"
About this Quote
The specific intent was surgical: to separate “sounds like English” from “makes sense,” pushing back against mid-century theories (notably behaviorist and statistical accounts of language) that treated well-formedness as a byproduct of habit or frequency. The line is memorable because it weaponizes nonsense with perfect manners. You can’t dismiss it as babble; you have to admit something in the mind is enforcing rules independent of meaning and beyond mere exposure.
The subtext carries Chomsky’s larger politics in miniature. He’s always been suspicious of systems that mistake surface patterns for understanding - whether it’s a lab rat’s conditioning or a state’s propaganda. Here, the sentence becomes an allegory for fluent institutions: outputs can be syntactically polished while conceptually vacant, even self-contradictory. It also anticipates a contemporary anxiety: in an age of text that statistically “fits,” the line reads like a warning label. Coherence isn’t the same as truth, and grammatical confidence can mask semantic emptiness.
Quote Details
| Topic | Writing |
|---|---|
| Source | Noam Chomsky — sentence “Colorless green ideas sleep furiously,” introduced as an example in Syntactic Structures (1957). |
| Cite |
Citation Formats
APA Style (7th ed.)
Chomsky, Noam. (2026, January 14). Colorless green ideas sleep furiously. FixQuotes. https://fixquotes.com/quotes/colorless-green-ideas-sleep-furiously-165565/
Chicago Style
Chomsky, Noam. "Colorless green ideas sleep furiously." FixQuotes. January 14, 2026. https://fixquotes.com/quotes/colorless-green-ideas-sleep-furiously-165565/.
MLA Style (9th ed.)
"Colorless green ideas sleep furiously." FixQuotes, 14 Jan. 2026, https://fixquotes.com/quotes/colorless-green-ideas-sleep-furiously-165565/. Accessed 5 Feb. 2026.







