"It is a good morning exercise for a research scientist to discard a pet hypothesis every day before breakfast. It keeps him young"
About this Quote
The line’s charm is its deliberate domesticity. Big epistemological stakes, delivered with the tone of advice your grandfather might give about stretching. That’s the subtext: real scientific rigor looks less like heroic genius and more like unglamorous hygiene. Lorenz also threads in a gendered generational note with “him,” typical of his era, but the deeper point is psychological rather than demographic: youth here means plasticity. The mind stays “young” when it resists fossilizing into certainty.
Context matters. Lorenz helped found ethology and spent a career trying to make sense of animal behavior with models that could harden into just-so stories if left unchallenged. His own biography includes a troubling early association with Nazi ideology, a reminder that “pet hypotheses” can be more than academic; they can become moral alibis when insulated from disproof. Read that way, the quote doubles as penance and warning: the most dangerous ideas are the ones you refuse to kill before breakfast.
Quote Details
| Topic | Science |
|---|---|
| Source | Evidence: It is a good morning exercise for a research scientist to discard a pet hypothesis every day before breakfast. It keeps him young. (Page 8 (per multiple independent scholarly quote citations; exact edition-dependent)). This quote is consistently attributed to Konrad Lorenz’s book originally published in German as "Das sogenannte Böse. Zur Naturgeschichte der Aggression" (1963), and appearing in the English translation "On Aggression" translated by Marjorie Latzke (published 1966). Multiple reputable secondary references specifically locate it in the English translation at p. 8 and attribute it to the Latzke translation (e.g., Wikiquote and LibQuotes), and Britannica attributes it to "On Aggression". However, I could not access a page image/scan of p. 8 from the 1966 book itself via open web sources in this search session, so I cannot claim 'high' confidence for page-level verification from a directly viewable primary scan. The earliest publication I can substantiate is the book’s original German edition in 1963 (primary source), with the widely-cited English wording in the 1966 translation. Other candidates (1) Scientific Research as a Career (Finlay MacRitchie, 2011) compilation96.3% ... It is a good morning exercise for a research scientist to discard a pet hypothesis every day before breakfast. It... |
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Citation Formats
APA Style (7th ed.)
Lorenz, Konrad. (2026, February 9). It is a good morning exercise for a research scientist to discard a pet hypothesis every day before breakfast. It keeps him young. FixQuotes. https://fixquotes.com/quotes/it-is-a-good-morning-exercise-for-a-research-84335/
Chicago Style
Lorenz, Konrad. "It is a good morning exercise for a research scientist to discard a pet hypothesis every day before breakfast. It keeps him young." FixQuotes. February 9, 2026. https://fixquotes.com/quotes/it-is-a-good-morning-exercise-for-a-research-84335/.
MLA Style (9th ed.)
"It is a good morning exercise for a research scientist to discard a pet hypothesis every day before breakfast. It keeps him young." FixQuotes, 9 Feb. 2026, https://fixquotes.com/quotes/it-is-a-good-morning-exercise-for-a-research-84335/. Accessed 1 Mar. 2026.










