"Heredity provides for the modification of its own machinery"
About this Quote
Context matters. Baldwin was writing in the late 19th and early 20th centuries, when Darwin’s basic engine was widely accepted but the transmission mechanism was still contested and genetics hadn’t yet settled the question. As a philosopher-psychologist, he was especially interested in how learning and behavior could steer evolutionary outcomes. His larger project (what later got labeled the “Baldwin effect”) proposed that organisms’ adaptive behaviors can alter which individuals survive and reproduce, indirectly nudging hereditary change over time. Acquired habits don’t get magically written into genes, but they can reshape the selection pressures that decide which genes persist.
The subtext is a critique of fatalism. If heredity can “modify its own machinery,” then what looks like biological destiny is also historically pliable. The phrase “provides for” is doing quiet rhetorical work: it implies foresight without claiming mystical intention, a careful dodge between teleology and randomness. Baldwin’s intent is to make evolution feel less like a blind external force and more like an internally responsive process, one where development, behavior, and environment are not footnotes to heredity but levers acting on it.
Quote Details
| Topic | Science |
|---|---|
| Source | Help us find the source |
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Citation Formats
APA Style (7th ed.)
Baldwin, James Mark. (2026, January 17). Heredity provides for the modification of its own machinery. FixQuotes. https://fixquotes.com/quotes/heredity-provides-for-the-modification-of-its-own-51422/
Chicago Style
Baldwin, James Mark. "Heredity provides for the modification of its own machinery." FixQuotes. January 17, 2026. https://fixquotes.com/quotes/heredity-provides-for-the-modification-of-its-own-51422/.
MLA Style (9th ed.)
"Heredity provides for the modification of its own machinery." FixQuotes, 17 Jan. 2026, https://fixquotes.com/quotes/heredity-provides-for-the-modification-of-its-own-51422/. Accessed 5 Feb. 2026.



