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Thomas Kuhn

Thomas Kuhn Quotes

Physicist

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Famous Thomas Kuhn Quotes

“To turn Karl [Popper]'s view on its head, it is precisely the abandonment of critical discourse that marks the transition of science. Once a field has made the transition, critical discourse recurs only at moments of crisis when the bases of the field are again in jeopardy. Only when they must choose between competing theories do scientists behave like philosophers.”

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Book:The Essential Tension: Selected Studies in Scientific Tradition and Change
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“All crises begin with the blurring of a paradigm and the consequent loosening of the rules for normal research. .. Or finally, the case that will most concern us here, a crisis may end with the emergence of a new candidate for paradigm and with the ensuing battle over its acceptance.”

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Book:The Structure of Scientific Revolutions: 50th Anniversary Edition
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“It is, I think, particularly in periods of acknowledged crisis that scientists have turned to philosophical analysis as a device for unlocking the riddles of their field. Scientists have not generally needed or wanted to be philosophers.”

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Book:The Structure of Scientific Revolutions: 50th Anniversary Edition
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