Skip to main content

Science Quote by Louis Pasteur

"Did you ever observe to whom the accidents happen? Chance favors only the prepared mind"

About this Quote

“Accidents” are never as random as we pretend. Pasteur’s line punctures the romantic myth of the lone genius stumbling into discovery and replaces it with something less cinematic, more demanding: disciplined attention. By asking, “Did you ever observe to whom the accidents happen?” he frames chance as a pattern you can study, not a lottery you can only pray to win. The question is a quiet taunt aimed at complacency. If you’re not seeing “lucky breaks,” maybe the world isn’t withholding them; maybe you’re not trained to recognize what’s breaking.

The subtext is almost moral. Pasteur isn’t denying randomness; he’s relocating agency. Serendipity becomes a reward for habits: rigorous method, fluency in a field’s problems, the patience to notice anomalies instead of smoothing them away. “Prepared mind” is doing heavy lifting here. It means having the conceptual tools to interpret a fluke as evidence rather than noise, and the confidence to follow it when it threatens your assumptions.

Context matters: Pasteur worked in an era when modern laboratory science was hardening into a professional discipline. His breakthroughs in microbiology and vaccination weren’t just flashes of inspiration; they were built on careful experimentation and a willingness to see meaning in contamination, fermentation, and unexpected results. The quote doubles as an institutional argument for science itself: fund training, cultivate expertise, build systems for observation. Chance will still strike, but it will land where it can be used.

Quote Details

TopicMotivational
SourceHelp us find the source
Cite

Citation Formats

APA Style (7th ed.)
Pasteur, Louis. (2026, January 15). Did you ever observe to whom the accidents happen? Chance favors only the prepared mind. FixQuotes. https://fixquotes.com/quotes/did-you-ever-observe-to-whom-the-accidents-happen-17820/

Chicago Style
Pasteur, Louis. "Did you ever observe to whom the accidents happen? Chance favors only the prepared mind." FixQuotes. January 15, 2026. https://fixquotes.com/quotes/did-you-ever-observe-to-whom-the-accidents-happen-17820/.

MLA Style (9th ed.)
"Did you ever observe to whom the accidents happen? Chance favors only the prepared mind." FixQuotes, 15 Jan. 2026, https://fixquotes.com/quotes/did-you-ever-observe-to-whom-the-accidents-happen-17820/. Accessed 12 Feb. 2026.

More Quotes by Louis Add to List
Chance Favors the Prepared Mind - Louis Pasteur Quote
Click to enlarge Portrait | Landscape

About the Author

Louis Pasteur

Louis Pasteur (December 27, 1822 - September 28, 1895) was a Scientist from France.

12 more quotes available

View Profile

Similar Quotes

Louis Pasteur, Scientist
Louis Pasteur
Leslie Stephen, Author
Leslie Stephen
Louis Pasteur, Scientist
Louis Pasteur
Gamal Abdel Nasser, Leader