"When a truth is necessary, the reason for it can be found by analysis, that is, by resolving it into simpler ideas and truths until the primary ones are reached"
About this Quote
The intent is methodological, but the subtext is a power grab on behalf of reason. Leibniz is staking out a domain where philosophers (and mathematicians) can rule without asking permission from the senses. This is a rationalist manifesto in miniature, pitched against the messy contingencies of empiricism: experiments can tell you what happens, but only analysis can tell you what must happen. The line also smuggles in a confidence that language and thought have an underlying architecture - that ideas are compositional, and that complex truths are built from simpler ones like geometric proofs from axioms.
Context matters: Leibniz is writing in the wake of Descartes, in a Europe electrified by the success of mathematics and early modern science. His "analysis" echoes the dream of a universal calculus of reasoning, where disputes could be settled by computation rather than rhetoric. At the same time, it hints at his deeper metaphysics: necessary truths are analytic because their negation contains a contradiction, a view that anticipates later debates about analytic truth and the foundations of logic.
It works because it flatters a certain intellectual temperament: the promise that if you think clearly enough, the world will stop being noisy.
Quote Details
| Topic | Reason & Logic |
|---|---|
| Source | Help us find the source |
| Cite |
Citation Formats
APA Style (7th ed.)
Leibniz, Gottfried. (2026, January 18). When a truth is necessary, the reason for it can be found by analysis, that is, by resolving it into simpler ideas and truths until the primary ones are reached. FixQuotes. https://fixquotes.com/quotes/when-a-truth-is-necessary-the-reason-for-it-can-429/
Chicago Style
Leibniz, Gottfried. "When a truth is necessary, the reason for it can be found by analysis, that is, by resolving it into simpler ideas and truths until the primary ones are reached." FixQuotes. January 18, 2026. https://fixquotes.com/quotes/when-a-truth-is-necessary-the-reason-for-it-can-429/.
MLA Style (9th ed.)
"When a truth is necessary, the reason for it can be found by analysis, that is, by resolving it into simpler ideas and truths until the primary ones are reached." FixQuotes, 18 Jan. 2026, https://fixquotes.com/quotes/when-a-truth-is-necessary-the-reason-for-it-can-429/. Accessed 12 Feb. 2026.







