"Finally we come to something attributed to Samuel Clemens, one of my favourite authors (writing under the pseudonym of Mark Twain): “Never argue with stupid people, they will drag you down to their level and beat you with experience.” Wikiquote – one of the best sources online for valid quotes – doesn’t list it.
I’ve found several properly attributed Twain quotes, including this one from an 1873 speech titled License of the Press: “The trouble is that the stupid people–who constitute the grand overwhelming majority of this and all other nations–do believe and are moulded and convinced by what they get out of a newspaper.” Great quote. Today we’d replace the words ‘a newspaper’ with ‘the internet.’
But I have not found anything with the exact wording of the quote with anything more than a generic attribution. That told me it isn’t a valid quote (valid quotes include the source). Certainly it doesn’t read like anything I’ve read by Twain. So I kept looking. This site attributes to author Greg King, as do several quotation sites (some which which also attribute it to Twain). I’d bet on the King attribution.
All of these quotes are repeated ad nauseum on many, many other sites, including those allegedly reference sites for quotations. Which proves (as do all of these mis-attributed quotes) that these sites are NOT authoritative, merely collectors of anecdotal errors.
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