"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 | Plato, Theaetetus (Stephanus 183c) — often translated as "Thinking is the talking of the soul with itself." |
| Cite |
Citation Formats
APA Style (7th ed.)
Plato. (2026, January 15). 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. January 15, 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, 15 Jan. 2026, https://fixquotes.com/quotes/when-the-mind-is-thinking-it-is-talking-to-itself-29333/. Accessed 12 Feb. 2026.








