Deep thought Quote by Carl Sagan
“Skeptical scrutiny is the means, in both science and religion, by which deep thoughts can be winnowed from deep nonsense.”
About This Quote
Source Book: Cosmos, Carl Sagan, 1980
Critical examination separates valuable ideas from false ones in both science and faith.
In simple terms: Critical thinking separates truth from nonsense.
Key Takeaway
Question assumptions, seek evidence.
Themes
critical thinking
science
religion
inquiry
Mood
thoughtful
analytical
Type
philosophical
educational
When to use this quote
- academic research
- personal belief evaluation
- public discourse
- media analysis
Key Concepts
epistemology
skepticism
philosophy of science
Questions to Reflect On
- How do you balance healthy doubt with openness?
- When does skepticism become counterproductive?
A Different Perspective
Over‑reliance on skepticism can lead to cynicism or paralysis.
![“[ 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)
