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It is precisely our plasticity, our long childhood, that prevents a slavish adherence to genetically preprogrammed behavior in human beings more than in any other species… Some substantial adjustment of the relative role of each component of the triune brain is well within our powers.

It is precisely our plasticity, our long childhood, that prevents a slavish adherence to genetically preprogrammed behavior in human beings more than in any other species… Some substantial adjustment of the relative role of each component of the triune brain is well within our powers.

Approximate author period: c. 1965 AD · modern

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Attribution & collection notes
Author or tradition
Carl Sagan
Attribution: attributed
Country attributed
Not established
A country attribution does not establish the earliest origin.
Historical period
Approximate author period: c. 1965 AD · modern
Approximate author-period anchor from life dates 1934 to 1996; Wikidata Q410, https://www.wikidata.org/wiki/Q410 (accessed 2026-10-08). Not a quotation composition date.
An author lifetime, approximate period or collection date is not necessarily the date when these words were first written or spoken.
Recorded source
Contributor-provided quotation collection

Supplied reference C; CSV row 101860; supplied attribution, independently unverified

A collection's publication date can be later than the words it records.