"A fact in itself is nothing. It is valuable only for the idea attached to it, or for the proof which it furnishes"
About this Quote
The subtext is methodological discipline. Bernard is arguing for an experimental mindset in which observation is guided, not random, and where data is meaningful only inside a framework that can be challenged. The quiet provocation is that facts don’t speak for themselves; scientists (and institutions, and cultures) speak through them. That’s a warning as much as a credo: if you don’t attach an explicit idea, you’ll smuggle in an implicit one - prejudice, fashion, or wishful thinking - and call it “just the data.”
Context matters here. Bernard was a foundational figure in 19th-century physiology and experimental medicine, working in an era when science was professionalizing and separating itself from anecdote, authority, and metaphysics. He’s also pushing back against the romance of pure induction: the fantasy that nature will reveal its secrets if you simply watch hard enough. His sentence reads like a lab rule that doubles as cultural critique. In a world that treats “receipts” as arguments and “data-driven” as a moral badge, Bernard reminds us: evidence is only as intelligent as the question that summons it.
Quote Details
| Topic | Reason & Logic |
|---|---|
| Source | Help us find the source |
| Cite |
Citation Formats
APA Style (7th ed.)
Bernard, Claude. (2026, January 17). A fact in itself is nothing. It is valuable only for the idea attached to it, or for the proof which it furnishes. FixQuotes. https://fixquotes.com/quotes/a-fact-in-itself-is-nothing-it-is-valuable-only-45047/
Chicago Style
Bernard, Claude. "A fact in itself is nothing. It is valuable only for the idea attached to it, or for the proof which it furnishes." FixQuotes. January 17, 2026. https://fixquotes.com/quotes/a-fact-in-itself-is-nothing-it-is-valuable-only-45047/.
MLA Style (9th ed.)
"A fact in itself is nothing. It is valuable only for the idea attached to it, or for the proof which it furnishes." FixQuotes, 17 Jan. 2026, https://fixquotes.com/quotes/a-fact-in-itself-is-nothing-it-is-valuable-only-45047/. Accessed 12 Feb. 2026.













