Doubt Quote by Denis Diderot
“A thing is not proved just because no one has ever questioned it. What has never been gone into impartially has never been properly gone into. Hence scepticism is the first step toward truth. It must be applied generally, because it is the touchstone.”
About This Quote
Source Essay: The Art of Thinking, 1748
Questioning and impartial investigation are essential; skepticism initiates truth‑seeking.
In simple terms: Skepticism and impartial inquiry lead to truth.
Key Takeaway
Apply critical thinking to all claims.
Themes
skepticism
inquiry
truth
Mood
inquisitive
thoughtful
Type
philosophical
educational
When to use this quote
- scientific research
- media literacy
- legal analysis
- personal decisions
Key Concepts
epistemology
critical reasoning
Questions to Reflect On
- What beliefs have you accepted unexamined?
- How can you balance doubt with openness?
A Different Perspective
Excessive skepticism can lead to paralysis.
