Guevara wrote it by hand, in Spanish, in the guestbook of Eduardo Víctor Haedo’s house at Punta del Este in 1961, and signed it “Ché”: “hay que endurecerse sin perder la ternura jamás.” In 2019 Radio Uruguay ↗ published a photograph of the page, credited to museos.uy. No speech, letter or book of his is known to contain the line. The English sentence is a translation of unknown origin.
“One has to grow hard but without ever losing tenderness” Che Guevara, English rendering of his handwritten guestbook inscription, Punta del Este, 1961 (Spanish: “hay que endurecerse sin perder la ternura jamás”; photograph published by Radio Uruguay, 2019). Via Quotle.info
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In context
Evoking the world of Che Guevara — Argentine-born Marxist revolutionary. Theme: "One has to grow hard but without ever losing tenderness". Atmospheric and restrained, cinematic directional light, a muted period-appropriate palette, fine grain and texture. Compose with generous empty space for the quote and a small credit line. No lettering in the image itself.
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Provenance
Where the line comes from
Spanish form
Hay que endurecerse sin perder la ternura jamás
Written in
Guestbook of Eduardo Víctor Haedo’s house, “La azotea,” Punta del Este, 1961 (August, per Spanish Wikiquote); signed “Ché”
Published
As a photograph of the page in Radio Uruguay, “Juan Martín Guevara, hermano del Che: ‘en Uruguay fue la última vez que estuvimos todos juntos’”, 28 April 2019 (photo credited to museos.uy)
Translation
English rendering of unknown origin; Wikiquote cites it only as quoted in Leonardo Boff, Essential Care (2008), p. 82
«Para Haedo que aquí en Punta del Este ha comprendido el porqué de nuestra revolución y sabe “que hay que endurecerse sin perder la ternura jamás”»
Handwritten, 1961
This is Guevara’s inscription, signed “Ché,” as it appears in a photograph of the guestbook page that Radio Uruguay ↗ published on 28 April 2019, credited to museos.uy. The station’s transcription and Spanish Wikiquote ↗’s match the handwriting. In English: “For Haedo, who here in Punta del Este has understood the why of our revolution and knows ‘that one has to harden without ever losing tenderness.’” We have seen the photograph, not the book itself. Juan Martín Guevara told the station that the phrase was born here, though Che’s inner quotation marks could mean he was quoting a saying he already used.
Quote Investigator ↗ has not investigated this line. A site search for “Guevara” returns “Nothing Found.”
English Wikiquote ↗ lists “One has to grow hard but without ever losing tenderness” under his quotes. Its only citation is a secondary one: Leonardo Boff’s Essential Care: An Ethics of Human Nature (2008), p. 82. It gives no speech, letter or date.
Spanish Wikiquote ↗ gives “Hay que endurecerse sin perder la ternura jamás.” It says Guevara wrote the line in the guestbook of “la azotea de Haedo” in August 1961, during the OAS economic conference at Punta del Este, and cites his brother Juan Martín Guevara on Radio Uruguay as the source.
Radio Uruguay ↗ published the interview Spanish Wikiquote cites on 28 April 2019 (archived 5 March 2021). It reports Juan Martín Guevara saying the phrase was born on Haedo’s terrace, in the guestbook, and it prints a photograph of the handwritten page, signed “Ché” and credited to museos.uy. The handwriting reads word for word as transcribed.
EcuRed ↗ confirms that the Uruguayan politician Eduardo Víctor Haedo hosted Che Guevara at his Punta del Este house, “La azotea.” It does not mention a guestbook or the phrase.
The line comes from a handwritten 1961 guestbook inscription that Guevara never published himself. The earliest publication of the page we found is a photograph printed by Radio Uruguay in 2019, and the English wording is a translation of unknown origin. We have not established who holds rights in the inscription or the photograph, so we assert no copyright status. Guevara died in 1967, and his writings are generally still in copyright.
Rights status is our research, not legal advice — and copyright varies by country and edition. For commercial or published use, confirm with the rightsholder. See terms.
Fact-check
What the quote sites leave out
Nobody else is credited with this line, and it is Guevara’s: a photograph of the signed guestbook page survives. What the quote sites leave out is where it comes from. They present the English sentence as if it came from a known speech or text, but it is a translation of a handwritten 1961 inscription.
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The “source” behind the English wordingLeonardo Boff, Essential Care (2008) Secondary only
English Wikiquote ↗ cites the English sentence only “as quoted in” Boff’s book on the ethics of care. That book is a modern quotation of the saying, not Guevara’s own text.
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The popular Spanish slogan“Hay que endurecerse, pero sin perder la ternura jamás” Variant
English versions“One has to grow hard…” / “One must harden…” Translations
English Wikiquote ↗ itself uses two English wordings: “One has to grow hard but without ever losing tenderness” in its quote list and “One must harden without ever losing tenderness” in an image caption. Neither is Guevara’s exact wording. Both are renderings of a Spanish maxim.
✓The words are Guevara’s, in Spanish: a photograph of his signed 1961 guestbook inscription, published by Radio Uruguay ↗ in 2019, reads “hay que endurecerse sin perder la ternura jamás.” Treat the English sentence as a translation, not his exact wording.
Context
Punta del Este, 1961
In August 1961 Guevara led Cuba’s delegation to the OAS economic conference at the Uruguayan resort of Punta del Este. His family came to see him there, and a photograph captioned “Juan Martín, Ernesto and Roberto with their mother Celia in Punta del Este, 1961” accompanies a CLACSO interview with Juan Martín Guevara ↗. Spanish Wikiquote ↗ and Radio Uruguay ↗ place a visit on the same trip to the house of the Uruguayan politician Eduardo Víctor Haedo. EcuRed ↗ names the house, “La azotea,” and lists Che among the guests Haedo received there.
According to his brother, Guevara wrote the tenderness maxim in Haedo’s guestbook during that visit, and the photograph of the page bears that out. The line is now a common slogan on Che merchandise, often with an added “pero,” as on an Argentine sticker (2005–2010) in Princeton’s Latin American Ephemera collection ↗.
Hay que endurecerse sin perder la ternura jamás.
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Filed under
More provenance-checked quotes on the same theme, each with its reuse status.
Ernesto Guevara, known as Che, was an Argentine-born physician who became a commander of the Cuban Revolution and then a minister in Fidel Castro’s government. He left Cuba to lead guerrilla campaigns abroad and was killed in Bolivia in 1967. Since his death his face and slogans have been reproduced worldwide, and many unsourced sayings now carry his name.
For writers & researchers
Cite this
Primary source
Ernesto “Che” Guevara, handwritten inscription in the guestbook of Eduardo Víctor Haedo’s house, Punta del Este, 1961: “Hay que endurecerse sin perder la ternura jamás.” Photograph (credited to museos.uy) in Radio Uruguay, “Juan Martín Guevara, hermano del Che: ‘en Uruguay fue la última vez que estuvimos todos juntos’”, 28 April 2019, archived by the Internet Archive, 5 March 2021. English wording of unknown origin, as quoted in Leonardo Boff, Essential Care: An Ethics of Human Nature (2008), 82, per Wikiquote, “Che Guevara.”
This verification page
Quotle.info. “Who really said ‘One has to grow hard but without ever losing tenderness’?” Last verified 2 Nov 2026. https://quotle.info/who-said/one-has-to-grow-hard-but-without-ever-losing-tenderness/