"The problem is that no ethical system has ever achieved consensus. Ethical systems are completely unlike mathematics or science. This is a source of concern"
About this Quote
The key move is the comparison. Mathematics and much of science generate consensus through shared methods: proofs, experiments, error correction. Ethics, by contrast, collides with plural values, competing intuitions, and the fact that moral “data” includes messy things like empathy, power, history, and self-interest. Dennett’s subtext is evolutionary and pragmatic: moral norms are tools societies adapt, not discoveries waiting in the universe like a new particle. That’s why disagreement is persistent, not a temporary glitch.
“This is a source of concern” is doing more work than it seems. It signals a political and cultural anxiety: if there’s no consensus mechanism, moral debates get decided by rhetoric, institutions, and force as much as by reasons. In an era where people invoke “science” to certify everything from parenting to policy, Dennett warns against moral scientism - and against the cynical backlash it breeds when science can’t deliver a final answer.
Contextually, this fits Dennett’s broader project: naturalizing big questions without flattening them. The intent isn’t to downgrade ethics, but to demand better intellectual hygiene: treat moral inquiry as ongoing negotiation, not as a field awaiting its Euclid.
Quote Details
| Topic | Ethics & Morality |
|---|---|
| Source | Help us find the source |
| Cite |
Citation Formats
APA Style (7th ed.)
Dennett, Daniel. (2026, January 16). The problem is that no ethical system has ever achieved consensus. Ethical systems are completely unlike mathematics or science. This is a source of concern. FixQuotes. https://fixquotes.com/quotes/the-problem-is-that-no-ethical-system-has-ever-111877/
Chicago Style
Dennett, Daniel. "The problem is that no ethical system has ever achieved consensus. Ethical systems are completely unlike mathematics or science. This is a source of concern." FixQuotes. January 16, 2026. https://fixquotes.com/quotes/the-problem-is-that-no-ethical-system-has-ever-111877/.
MLA Style (9th ed.)
"The problem is that no ethical system has ever achieved consensus. Ethical systems are completely unlike mathematics or science. This is a source of concern." FixQuotes, 16 Jan. 2026, https://fixquotes.com/quotes/the-problem-is-that-no-ethical-system-has-ever-111877/. Accessed 12 Feb. 2026.





