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Daily Inspiration Quote by Will Durant

"Moral codes adjust themselves to environmental conditions"

About this Quote

Durant’s line has the cool efficiency of a historian who’s tired of hearing ethics treated like a set of eternal commandments dropped from the sky. “Adjust” is the tell: it’s the language of pragmatism, not prophecy. He’s describing morality less as revelation than as a living technology - a social operating system that updates when the world that runs it changes.

The intent is quietly deflationary. Durant isn’t denying that people feel moral conviction; he’s puncturing the idea that those convictions float above material life. Environmental conditions can mean climate and geography, but also scarcity, war, commerce, urban density, disease, new tools. When resources are thin, virtues like thrift, loyalty, and obedience tend to harden into necessity. When surplus arrives, societies can afford broader tolerances and more individualized ideals. Moral “progress,” in this framing, is often just the luxury of stability.

The subtext is a warning to moral absolutists and a check on moral smugness. If our codes are adaptive, then judging the past (or other cultures) as simply wicked becomes a kind of willful illiteracy about their constraints. It also unsettles the comforting story that we’re better because we’re wiser; we may just be differently situated.

Context matters: Durant wrote as a synthesizer of civilizations, watching the 20th century’s rapid shocks - world wars, mass industry, secularization - rearrange what people called decent. His point isn’t that morality is fake. It’s that morality is contingent, and that contingency is the real engine of historical change.

Quote Details

TopicEthics & Morality
Source
Verified source: The Lessons of History (Will Durant, 1968)ISBN: 9780671413330
Text match: 96.43%   Provider: Cross-Reference
Evidence:
Moral codes differ because they adjust themselves to historical and environmental conditions. (Chapter: “Morals and History” (page varies by edition)). The commonly-circulated wording (“Moral codes adjust themselves to environmental conditions”) appears to be a shortened/paraphrased form. In the primary text, the sentence reads as above and occurs in the “Morals and History” section of The Lessons of History (Will Durant and Ariel Durant), first published in 1968 by Simon & Schuster. The exact page number depends on the specific printing/edition (hardcover vs. later paperback/e-book reprints), so you’ll want to verify against the particular copy you’re citing.
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Citation Formats

APA Style (7th ed.)
Durant, Will. (2026, February 10). Moral codes adjust themselves to environmental conditions. FixQuotes. https://fixquotes.com/quotes/moral-codes-adjust-themselves-to-environmental-134896/

Chicago Style
Durant, Will. "Moral codes adjust themselves to environmental conditions." FixQuotes. February 10, 2026. https://fixquotes.com/quotes/moral-codes-adjust-themselves-to-environmental-134896/.

MLA Style (9th ed.)
"Moral codes adjust themselves to environmental conditions." FixQuotes, 10 Feb. 2026, https://fixquotes.com/quotes/moral-codes-adjust-themselves-to-environmental-134896/. Accessed 12 Feb. 2026.

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About the Author

Will Durant

Will Durant (November 5, 1885 - November 7, 1981) was a Historian from USA.

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