Thomas Kuhn

"Scientific communities maintain paradigms through education."

"The history of science reveals the power of paradigm shifts."

"New paradigms create new realities for scientists."

"The paradigm determines the boundaries of normal science."

"Crisis generates revolutionary science."

"Scientific revolutions are fundamentally about seeing differently."

"The scientist who pauses to examine his own assumptions may discover more about himself than about nature."

"We see what we are trained to see, and this training runs deeper than we imagine."

"Revolutions in thought are not merely additive; they transform everything that came before."

"The community of scientists is bound not by agreement, but by shared puzzles to solve."

"What appears irrational from one perspective may be perfectly logical from another."

"Knowledge is not a mirror held up to nature, but a construction built by human minds."

"The greatest obstacle to discovery is not ignorance, but the illusion of knowledge."

"When paradigms shift, the world itself seems to change."

"Scientists are not objective observers; they are participants in a human enterprise."

"Normal science proceeds by refining puzzles within an accepted framework."

"The incommensurability of paradigms means we sometimes speak past one another."

"Beauty in science is often a sign that we are on the right track."

"Anomalies accumulate until they force a crisis of confidence."

"What counts as evidence depends on what we already believe."

"Revolutionary science demands a willingness to abandon cherished beliefs."

"The puzzle-solver in science is not seeking eternal truth, but temporary solutions."

"Communities of scientists share not facts, but frameworks for seeing facts."

"History shows us that today's certainties become tomorrow's curiosities."

"The scientist's toolkit includes faith as much as it includes instruments."

"When paradigm shift occurs, past achievements are reinterpreted in new light."

"We cannot step outside our historical moment to view it objectively."

"The text of nature is not written in a universal language."

"Competing paradigms offer different worlds to their adherents."

"Science progresses not by accumulation alone, but by occasional leaps."