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Science Quote by Albert Einstein

"You cannot simultaneously prevent and prepare for war"

About this Quote

Einstein’s line lands like a clean equation with an ugly result: the inputs of “prevention” and “preparation” don’t add up to peace. Coming from a physicist, it reads less like a moral plea than a systems warning. If you build the machinery, train the bodies, and normalize the budgets for war, you aren’t just hedging against catastrophe; you’re creating a standing invitation to use what you’ve made. Preparation isn’t neutral. It changes incentives, politics, and imagination.

The intent is to expose a contradiction that polite statecraft likes to hide. Nations talk about arms as “deterrence” while insisting they remain committed to diplomacy. Einstein punctures that comforting double-think. Preparing for war requires storylines of threat, enemies, and inevitability; it needs a public emotionally primed to accept violence as plausible and even necessary. That psychological mobilization quietly sabotages prevention, which depends on trust-building, restraint, and the willingness to see rivals as negotiating partners rather than future targets.

The subtext is also personal. Einstein was a committed pacifist who nonetheless urged Roosevelt to pursue atomic research as Nazi power grew, then watched the bomb remake geopolitics into permanent preparedness. In that postwar world, “preparing” became a lifestyle: stockpiles, alliances, proxy conflicts, and a security state justified by worst-case scenarios. His warning is that the very act of bracing for war can become the reason war stays on the table - not because leaders are uniquely evil, but because the infrastructure of readiness demands a purpose.

Quote Details

TopicWar
Source
Unverified source: Einstein on Peace (Albert Einstein, 1960)
Text match: 70.00%   Provider: Cross-Reference
Evidence:
p. 397 (quotes a message dated 4 Dec 1946). The earliest traceable PRIMARY-context attribution I can verify via web sources is that the line comes from a message Einstein sent to U.S. Congressman Robert Hale (Portland, Maine) dated December 4, 1946, intended for use at a world government meeting ...
Other candidates (2)
An Introduction to Global Studies (Patricia J. Campbell, Aran MacKinnon,..., 2010) compilation95.0%
... You cannot simultaneously prevent and prepare for war. The very prevention of war requires more faith, courage an...
Albert Einstein (Albert Einstein) compilation37.5%
f you sit with a girl on a garden bench and the moon is shining then for you the
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Citation Formats

APA Style (7th ed.)
Einstein, Albert. (2026, January 13). You cannot simultaneously prevent and prepare for war. FixQuotes. https://fixquotes.com/quotes/you-cannot-simultaneously-prevent-and-prepare-for-25351/

Chicago Style
Einstein, Albert. "You cannot simultaneously prevent and prepare for war." FixQuotes. January 13, 2026. https://fixquotes.com/quotes/you-cannot-simultaneously-prevent-and-prepare-for-25351/.

MLA Style (9th ed.)
"You cannot simultaneously prevent and prepare for war." FixQuotes, 13 Jan. 2026, https://fixquotes.com/quotes/you-cannot-simultaneously-prevent-and-prepare-for-25351/. Accessed 12 Feb. 2026.

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You cannot simultaneously prevent and prepare for war - Einstein
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About the Author

Albert Einstein

Albert Einstein (March 14, 1879 - April 18, 1955) was a Physicist from Germany.

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