"Either war is obsolete, or men are"
About this Quote
That’s Fuller’s signature move: treat civilization as a system you can debug. The line isn’t moral pleading; it’s engineering rhetoric dressed as aphorism. “Obsolete” is a word from tool sheds and patents, not pulpits. It implies replacement. If war is outdated, it’s because we’ve built (or could build) better mechanisms for conflict: institutions, interdependence, information, abundance-by-design. If men are obsolete, the indictment is harsher: a species unable to update its operating system in response to new hardware.
The subtext is a Cold War dare. Fuller’s lifetime runs from horse-drawn armies to ICBMs, from scarcity economics to mass production. He’s telling his era that evolution is no longer slow and natural; it’s technological and sudden. Either we retire war like we retired the musket, or we’ll retire ourselves. The brilliance is how he makes that threat sound like common sense.
Quote Details
| Topic | War |
|---|---|
| Source | Help us find the source |
| Cite |
Citation Formats
APA Style (7th ed.)
Fuller, R. Buckminster. (2026, January 18). Either war is obsolete, or men are. FixQuotes. https://fixquotes.com/quotes/either-war-is-obsolete-or-men-are-22477/
Chicago Style
Fuller, R. Buckminster. "Either war is obsolete, or men are." FixQuotes. January 18, 2026. https://fixquotes.com/quotes/either-war-is-obsolete-or-men-are-22477/.
MLA Style (9th ed.)
"Either war is obsolete, or men are." FixQuotes, 18 Jan. 2026, https://fixquotes.com/quotes/either-war-is-obsolete-or-men-are-22477/. Accessed 12 Feb. 2026.












