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Daily Inspiration Quote by George Edward Moore

"All moral laws are merely statements that certain kinds of actions will have good effects"

About this Quote

Moore is needling a temptation that feels modern: the urge to treat morality like a user manual. If “all moral laws” are only forecasts of “good effects,” then ethics collapses into a kind of social engineering - do X because it yields Y. The line is written with the clipped confidence of an analytic philosopher, but it carries a polemical edge. Moore is not cheerleading that reduction; he’s setting it up as the sort of plausible-sounding move that quietly evacuates morality of what makes it moral.

The subtext is a warning about smuggling “good” in through the back door. You can describe effects all day - pleasure, stability, reduced suffering, greater flourishing - but the moment you call those effects “good,” you’ve already made a value judgment that can’t be derived from the description alone. That’s Moore’s larger project in Principia Ethica: to resist the “naturalistic fallacy,” the habit of defining moral terms (good, right) in terms of natural or psychological properties (pleasant, desired, approved). His famous “open question” maneuver presses the point: even if an action produces pleasure, it still makes sense to ask, “Yes, but is it good?”

Contextually, Moore is pushing back against late-19th-century utilitarian confidence and the growing prestige of scientific explanation. The quote works because it sounds like a neat, deflationary insight - morality as prediction - while actually exposing a category mistake. It forces the reader to notice how easily “ought” gets disguised as “will,” and how moral language becomes persuasive precisely when it pretends to be merely factual.

Quote Details

TopicEthics & Morality
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APA Style (7th ed.)
Moore, George Edward. (2026, January 17). All moral laws are merely statements that certain kinds of actions will have good effects. FixQuotes. https://fixquotes.com/quotes/all-moral-laws-are-merely-statements-that-certain-61479/

Chicago Style
Moore, George Edward. "All moral laws are merely statements that certain kinds of actions will have good effects." FixQuotes. January 17, 2026. https://fixquotes.com/quotes/all-moral-laws-are-merely-statements-that-certain-61479/.

MLA Style (9th ed.)
"All moral laws are merely statements that certain kinds of actions will have good effects." FixQuotes, 17 Jan. 2026, https://fixquotes.com/quotes/all-moral-laws-are-merely-statements-that-certain-61479/. Accessed 13 Feb. 2026.

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Moral Laws as Statements of Good Effects by G E Moore
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George Edward Moore (November 4, 1873 - October 24, 1958) was a Philosopher from England.

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