"When the mind is thinking, it is talking to itself"
About this Quote
The subtext is disciplinarian. Self-talk can be idle chatter or a rigorous cross-examination. Plato is betting on the latter, implying that a mind left untrained will merely rehearse its own prejudices. Internal dialogue becomes the staging ground for philosophy’s central task: separating opinion (doxa) from knowledge (episteme). You don’t “have” an idea so much as interrogate it, listen for its weak joints, and revise it under pressure.
Contextually, the claim sits inside Plato’s wider picture of the soul as divided and disputatious. Reason, spirit, appetite: different voices, competing bids for control. Thinking-as-talking also helps explain why Plato loves written dialogues while distrusting writing itself (as in the Phaedrus): real understanding is alive, responsive, able to answer back. If thought is conversation, then the best mind is not the loudest one, but the one that can sustain an honest internal Socrates - relentless, courteous, and allergic to self-deception.
Quote Details
| Topic | Reason & Logic |
|---|---|
| Source | Verified source: Theaetetus (Plato, -360)
Evidence: I mean the conversation which the soul holds with herself in considering of anything. I speak of what I scarcely understand; but the soul when thinking appears to me to be just talking, asking questions of herself and answering them, affirming and denying. (Stephanus 189e–190a). The modern quote "When the mind is thinking, it is talking to itself" is a shortened paraphrase of Socrates’ definition of thinking in Plato’s dialogue *Theaetetus* (189e–190a). Plato’s original was written in Greek in the 4th century BCE; exact English wording depends on the translator. The wording above is from Benjamin Jowett’s public-domain English translation, which is commonly the origin of the familiar English phrasing about the soul/mind talking to itself. Other candidates (1) The Modern Educational Treatment of Deafness (Alexander William Gordon Ewing, 1960) compilation95.0% ... Plato put into the mouth of Socrates : ' When the mind is thinking , it is talking to itself ' ( Cornford , 1945 ... |
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Citation Formats
APA Style (7th ed.)
Plato. (2026, February 27). When the mind is thinking, it is talking to itself. FixQuotes. https://fixquotes.com/quotes/when-the-mind-is-thinking-it-is-talking-to-itself-29333/
Chicago Style
Plato. "When the mind is thinking, it is talking to itself." FixQuotes. February 27, 2026. https://fixquotes.com/quotes/when-the-mind-is-thinking-it-is-talking-to-itself-29333/.
MLA Style (9th ed.)
"When the mind is thinking, it is talking to itself." FixQuotes, 27 Feb. 2026, https://fixquotes.com/quotes/when-the-mind-is-thinking-it-is-talking-to-itself-29333/. Accessed 5 Mar. 2026.








