For years, internet users have shared a quote about the potential dangers of technology, attributing it to the Serbian-American inventor Nikola Tesla.
As it appeared in posts on social media platforms including X (archived), Reddit (archived) and Instagram (archived), as well as on quote websites such as AZQuotes.com (archived), the quote read in full: "You may live to see man-made horrors beyond your comprehension." (In some instances, the verb "will" replaced "may.")
(AZQuotes.com)
Since at least 2013, as the website KnowYourMeme has noted, the quote has also been the basis of a popular meme in which internet users pair it with content perceived as cringeworthy or otherwise objectionable.
However, the evidence that Tesla actually said the quote is weak. As the website Quote Investigator found in 2016, the strongest evidence for the quote's authenticity is a magazine article that was published years after Tesla died and that contains no secure citation for the quote. In other words, the claim that Tesla ever said, "You may live to see man-made horrors beyond your comprehension," is based on an unsourced secondhand account written after Tesla's lifetime.
That article, titled "Ahead of His Time," appeared in Esquire in October 1947, four years after Tesla's death. The quote in question appeared toward the bottom of the first column on the article's second page, in the context of a summary of the 1898 Electrical Exhibition, an industry event held at Madison Square Garden.
According to the article, Tesla made his ominous statement about man-made horrors in response to an unnamed admiral's interest in the potential use of Tesla's radio-controlled electric boat — a prototype of which was on display at the exhibition — to sink enemy warships using dynamite. A screenshot of the relevant section can be seen below, with the quote outlined in red.
(Esquire)
The 1947 Esquire article, in short, is not definitive proof that Tesla ever said "You may live to see man-made horrors beyond your comprehension." For one, it was published after Tesla's death — a common red flag for apocryphal quotes.
Additionally, the Esquire article does not name the admiral whose comments allegedly prompted Tesla's quip, nor does its author mention a source for the anecdote, which would have taken place nearly 50 years before the article's writing.
Finally, although Tesla's participation in the 1898 exhibition was well documented in newspaper and magazine articles that year, we were unable to find any contemporaneous evidence of any exchange between Tesla and an admiral that matches the details of the anecdote from the 1947 Esquire article.
We conducted our own search mentions of the quote using Newspapers.com, the New York Times' Times Machine, and the Tesla Collection, an online archive of media coverage of Tesla dating between the 1880s and 1920. We also searched for variations on the phrase using Google Books and the Internet Archive.
Like Quote Investigator, we found no instances of the quote in any publication prior to Tesla's death, nor any instances that pointed to a legitimate primary source for it.
Similar Anecdote, Different Quote
An anecdote closely resembling the one in the Esquire article — but with some key differences — appeared in John J. O'Neill's biography of the inventor, "Prodigal Genius: The Life of Nikola Tesla," which was first published in 1944, a year after Tesla's death.
According to O'Neill, the man who approached Tesla at the 1898 Electrical Exhibition to raise the possibility of using dynamite-laden remote-controlled boats to sink enemy ships was not an admiral, but Waldemar Kaempffert, a college student who would eventually become The New York Times' science editor.
As recounted in "Prodigal Genius," Tesla responded to Kaempffert's suggestion with a pithy quote entirely different from the one investigated here: "You do not see there a wireless torpedo. You see there the first of a race of robots, mechanical men which will do the laborious work of the human race."
O'Neill did not provide an exact citation for this version of the anecdote, but his inclusion of Kaempffert in the book's acknowledgments suggests the source was Kaempffert's own memory. This also is not an ironclad source — it's possible Kaempffert misremembered or misrepresented Tesla's words, and when the biography was published in 1944 Tesla was no longer alive to correct the record if necessary.
However, O'Neill's biography is closer in date to Tesla's lifetime than the Esquire article, and it at least identifies by name the person who allegedly approached Tesla in 1898 about using his remote-controlled boats to blow up enemy ships.
Absence of Evidence
Ultimately, the lack of any demonstrable contemporaneous evidence for the quote about "man-made horrors" raises the possibility that the exchange described in the 1947 Esquire article never happened — or that, if it did happen, Tesla did not use the exact words printed in the magazine.
On the other hand, the absence of secure documentation for the quote about "man-made horrors" is not in itself proof that Tesla never said it. The inventor did at times express similar sentiments about the potential misuses of technology.
For example, in an interview for The New York World published in 1916 — in the midst of World War I — Tesla refused to give details about a wireless energy weapon he'd developed, explaining that he feared "it would contribute ideas to the belligerents which they might be able to develop to increase the horror of the war."
We've reached out to the Tesla Memorial Society of New York as well as the team behind the Tesla Collection to ask if they are aware of any concrete evidence dating to Tesla's lifetime for the quote about "man-made horrors," and will update this story if and when we hear back.
Previously, we looked into the claim that Tesla predicted the invention of cellphones.