"A scientific truth does not triumph by convincing its opponents and making them see the light, but rather because its opponents eventually die and a new generation grows up that is familiar with it"
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Progress, Planck suggests, isn’t a courtroom drama where evidence delivers a righteous verdict; it’s a demographic event. The line lands with the dry sting of a scientist who has watched brilliant arguments bounce off entrenched reputations. Its intent is less to romanticize “bold ideas” than to puncture the comforting myth that reason naturally persuades. People don’t just hold theories; they live inside them, build careers on them, teach them, police them. A new result doesn’t merely threaten an equation - it threatens status, identity, and the story a field tells about itself.
The subtext is a quietly savage critique of scientific culture: objectivity is the ideal, not the usual practice. Planck isn’t calling older scientists stupid; he’s pointing at incentives. When your authority is tied to a framework, conceding isn’t enlightenment, it’s self-demotion. So “truth” advances sideways: through textbooks, graduate training, hiring decisions, and the slow retooling of what counts as “common sense.” The phrase “familiar with it” is the tell. Acceptance is framed as habituation, not conversion.
Context sharpens the edge. Planck stands at the hinge between classical physics and the quantum revolution, where foundational assumptions had to be abandoned, not refined. In that world, disagreement wasn’t just about data; it was about what reality is allowed to look like. His aphorism works because it’s both sober and disillusioned: science may be our best engine for knowledge, but it still runs on very human fuel - pride, fear, and time.
The subtext is a quietly savage critique of scientific culture: objectivity is the ideal, not the usual practice. Planck isn’t calling older scientists stupid; he’s pointing at incentives. When your authority is tied to a framework, conceding isn’t enlightenment, it’s self-demotion. So “truth” advances sideways: through textbooks, graduate training, hiring decisions, and the slow retooling of what counts as “common sense.” The phrase “familiar with it” is the tell. Acceptance is framed as habituation, not conversion.
Context sharpens the edge. Planck stands at the hinge between classical physics and the quantum revolution, where foundational assumptions had to be abandoned, not refined. In that world, disagreement wasn’t just about data; it was about what reality is allowed to look like. His aphorism works because it’s both sober and disillusioned: science may be our best engine for knowledge, but it still runs on very human fuel - pride, fear, and time.
Quote Details
| Topic | Science |
|---|---|
| Source | Attributed to Max Planck; commonly cited in English as: "A scientific truth does not triumph by convincing its opponents..." See Wikiquote (Max Planck) for citations and source variants. |
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