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"Normal science does not aim at novelties of fact or theory and, when successful, finds none."
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"Human psychology is the most mysterious thing in the world."

"Science fiction writers foresee the inevitable, and although problems and catastrophes may be inevitable, solutions are not."

"In our world," said Eustace, "a star is a huge ball of flaming gas."Even in your world, my son, that is not what a star is, but only what it is made of."

"Psychology is more concerned with identifying the degree of mental disorder and less with its cure!"

"A drop of water is not immortal; it can be resolved into oxygen and hydrogen. If, therefore, a drop of water were to maintain that it had a quality of aqueousness which would survive its dissolution we should be inclined to be skeptical. In like manner we know that the brain is not immortal..."
Explore more quotes by Thomas Kuhn


"Rather than being an interpreter, the scientist who embraces a new paradigm is like the man wearing inverting lenses."


"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."


"Crisis alone is not enough. There must also be a basis, though it need be neither rational nor ultimately correct, for faith in the particular candidate chosen."


"The crises of our time, it becomes increasingly clear, are the necessary impetus for the revolution now under way. And once we understand nature's transformative powers, we see that it is our powerful ally, not a force to feared our subdued."


"Under normal conditions the research scientist is not an innovator but a solver of puzzles, and the puzzles upon which he concentrates are just those which he believes can be both stated and solved within the existing scientific tradition."


"The historian of science may be tempted to exclaim that when paradigms change, the world itself changes with them."


"Normal science does not aim at novelties of fact or theory and, when successful, finds none."
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