Hypothesis Quote by Carl Sagan
![“[One's] inability to invalidate your hypothesis is not at all the same thing as proving it true.” quote by Carl Sagan](https://sms4smile.com/quotes/img-quotes/cfb/carl-sagan-160_hypothesis_one-s-inability-to-invalidate-your-hypot_1619200.jpg)
“[One's] inability to invalidate your hypothesis is not at all the same thing as proving it true.”
About This Quote
Source Lecture: “The Scientific Method” at Cornell University, 1995
Inability to disprove a hypothesis isn’t the same as proving it true.
In simple terms: Not proving false isn’t proving true.
Key Takeaway
Seek falsifiability in claims.
Themes
science
logic
methodology
critical thinking
Mood
inquisitive
analytical
Type
educational
philosophical
When to use this quote
- clinical trials
- policy making
- education
Key Concepts
philosophy of science
epistemology
research design
Questions to Reflect On
- What evidence would truly confirm a claim?
- How do you handle untestable ideas?
A Different Perspective
Overlooks practical constraints of testing.
![“[ 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)
![“I am quite conscious that my speculations run beyond the bounds of true science…It is a mere rag of an hypothesis with as many flaw[s] & holes as sound parts.” quote by Charles Darwin](https://sms4smile.com/quotes/img-quotes/958/charles-darwin-507_bounds_i-am-quite-conscious-that-my-speculation_35382.jpg)
