"The pure natural scientist is liable to forget that minds exist, and that if it were not for them he could neither know nor act on physical objects"
About this Quote
The subtext is anti-reductionist without being anti-science. He’s not claiming minds are mystical; he’s pointing out an epistemic dependency. Physical objects don’t announce themselves as “data.” They become data only through perception, conceptual schemes, and norms of reasoning - all features of minded life. Even the most hard-nosed materialist still needs intentionality (aboutness), meaning, and agency to explain why a reading is taken as a measurement rather than a smudge, why a model is persuasive rather than just scribbles.
Contextually, Broad sits in early-to-mid 20th-century analytic philosophy, when debates about materialism, behaviorism, and the status of consciousness were intensifying. His line anticipates a modern tension: science’s extraordinary explanatory reach versus its tendency, in public discourse, to forget the human infrastructure that makes explanation possible. It’s a reminder that “objectivity” isn’t the absence of minds; it’s a disciplined achievement by minds.
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Citation Formats
APA Style (7th ed.)
Broad, Charles D. (2026, January 16). The pure natural scientist is liable to forget that minds exist, and that if it were not for them he could neither know nor act on physical objects. FixQuotes. https://fixquotes.com/quotes/the-pure-natural-scientist-is-liable-to-forget-117231/
Chicago Style
Broad, Charles D. "The pure natural scientist is liable to forget that minds exist, and that if it were not for them he could neither know nor act on physical objects." FixQuotes. January 16, 2026. https://fixquotes.com/quotes/the-pure-natural-scientist-is-liable-to-forget-117231/.
MLA Style (9th ed.)
"The pure natural scientist is liable to forget that minds exist, and that if it were not for them he could neither know nor act on physical objects." FixQuotes, 16 Jan. 2026, https://fixquotes.com/quotes/the-pure-natural-scientist-is-liable-to-forget-117231/. Accessed 12 Feb. 2026.








