Impossible Quote by Gottfried Leibniz
“There are also two kinds of truths: truth of reasoning and truths of fact. Truths of reasoning are necessary and their opposite is impossible; those of fact are contingent and their opposite is possible.”
About This Quote
Source Philosophical Treatise: Monadology, 1714
Two kinds of truth exist: logical truths that cannot be false, and factual truths that could be otherwise.
In simple terms: Logical truths are necessary; factual truths are contingent.
Key Takeaway
Distinguish necessity from contingency.
Themes
philosophy
logic
epistemology
Mood
analytical
thought‑provoking
Type
philosophical
educational
When to use this quote
- academic lecture
- debate
- critical thinking workshop
- legal reasoning
- policy analysis
Key Concepts
necessity
contingency
truth theory
Questions to Reflect On
- What examples illustrate each type?
- How do we verify contingent truths?
A Different Perspective
Fact‑checking can be difficult; logical truths may be abstract.
