Assertions Quote by carl sagan
““Claims that cannot be tested, assertions immune to disproof are veridically worthless, whatever value the may have in inspiring us or in exciting our sense of wonder.””
About This Quote
Source Book: The Demon‑Had-a‑Chord, 1995
Unfalsifiable claims lack truth value, regardless of how inspiring they may be.
In simple terms: Unprovable statements are worthless.
Key Takeaway
Prioritize testable, evidence‑based ideas.
Themes
science
skepticism
philosophy
truth
wonder
Mood
critical
inquisitive
Type
philosophical
scientific
When to use this quote
- research proposals
- education curricula
- public policy debates
Key Concepts
empirical method
critical thinking
epistemology
Questions to Reflect On
- What role does wonder play in scientific inquiry?
- How can we inspire curiosity while demanding evidence?
A Different Perspective
Some may argue wonder can exist without proof.
![“[ When a religious couple wrote to Sagan about fulfilled prophecies, he wrote back in May 1996 :] If ‘fulfilled prophecy’ is your criterion, why do you not believe in materialistic science, which has an unparalleled record of fulfilled prophecy? Consider, for example, eclipses.” quote by Carl Sagan](https://sms4smile.com/quotes/img-quotes/875/carl-sagan-160_belief_when-a-religious-couple-wrote-to-sagan-a_25095.jpg)
![“Mr. Dawkins' assertions are self-refuting- ie. Actual infinity vs. potential infinity easily makes the most reasonable argument for theism and a Deity. Now, the argument for the Creator God of Christianity requires much more time, energy, and logical effort." ~R. Alan Woods [2007]” quote by R. Alan Woods](https://sms4smile.com/quotes/img-quotes/215/r-alan-woods-1455_apologetics_mr-dawkins-assertions-are-self-refuting_801373.jpg)
![“A presumption becomes a self-refuting assertion". ~R. Alan Woods [2012]” quote by R. Alan Woods](https://sms4smile.com/quotes/img-quotes/5b2/r-alan-woods-1455_assertions_a-presumption-becomes-a-self-refuting-as_1929262.jpg)
