"Aristotle could have avoided the mistake of thinking that women have fewer teeth than men, by the simple device of asking Mrs. Aristotle to keep her mouth open while he counted"
About this Quote
The intent is methodological, but the method is mockery. Russell is attacking armchair reasoning: the habit of deriving claims from tidy theories, social prejudice, or inherited doctrine rather than from verification. The “simple device” phrasing parodies the language of scientific ingenuity, implying the real innovation is merely asking the person you’ve been theorizing about. That’s the subtext: women are treated as abstractions in male-authored systems, not as accessible sources of evidence.
The context is Russell’s broader campaign for intellectual hygiene in an age that had seen both the triumph of science and the catastrophe of ideologies dressed up as “reason.” His line doubles as an early lesson in what we now call epistemic humility: check the obvious, interrogate your assumptions, and notice who your worldview excludes. The sting is that the error isn’t obscure; it’s socially convenient. Aristotle didn’t lack intelligence. He lacked the habit of looking past his own status.
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Citation Formats
APA Style (7th ed.)
Russell, Bertrand. (2026, January 18). Aristotle could have avoided the mistake of thinking that women have fewer teeth than men, by the simple device of asking Mrs. Aristotle to keep her mouth open while he counted. FixQuotes. https://fixquotes.com/quotes/aristotle-could-have-avoided-the-mistake-of-16760/
Chicago Style
Russell, Bertrand. "Aristotle could have avoided the mistake of thinking that women have fewer teeth than men, by the simple device of asking Mrs. Aristotle to keep her mouth open while he counted." FixQuotes. January 18, 2026. https://fixquotes.com/quotes/aristotle-could-have-avoided-the-mistake-of-16760/.
MLA Style (9th ed.)
"Aristotle could have avoided the mistake of thinking that women have fewer teeth than men, by the simple device of asking Mrs. Aristotle to keep her mouth open while he counted." FixQuotes, 18 Jan. 2026, https://fixquotes.com/quotes/aristotle-could-have-avoided-the-mistake-of-16760/. Accessed 11 Feb. 2026.











