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"Research programmes, besides their negative heuristic, are also characterized by their positive heuristic."
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"The criminalization of marijuana did not prevent marijuana from becoming the most widely used illegal substance in the United States and many other countries. But it did result in extensive costs and negative consequences."
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Personal Development

"A moment's reflection shows that Liberalism is entirely negative. It is not a formative force, but always and only a disintegrating force."
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Personal Development

"Let's not be narrow, nasty, and negative."
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"I hate negative songs; I won't sing them. It doesn't matter if it's sold 2 million more albums."
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Personal Development

"No, I try not to be a negative thinker."
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"You never know with politicians what they are really saying. And I don't say that in a negative way-they have an appalling job."
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"Tax increases appear to have a very large sustained and highly significant negative impact on output."
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"And they said if we help with the crisis, they would do a lot of positive acts. After we helped in those crises, they showed negative acts and the Japanese and Turks were ashamed."
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"Always turn a negative situation into a positive situation."
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"I never looked at the consequences of missing a big shot... when you think about the consequences you always think of a negative result."
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"Blind commitment to a theory is not an intellectual virtue: it is an intellectual crime."
Planning

"The classical example of a successful research programme is Newton's gravitational theory: possibly the most successful research programme ever."
Success

"It would be wrong to assume that one must stay with a research programme until it has exhausted all its heuristic power, that one must not introduce a rival programme before everybody agrees that the point of degeneration has probably been reached."
Power

"The positive heuristic of the programme saves the scientist from becoming confused by the ocean of anomalies."
Positive

"If even in science there is no a way of judging a theory but by assessing the number, faith and vocal energy of its supporters, then this must be even more so in the social sciences: truth lies in power."
Faith

"Indeed, this epistemological theory of the relation between theory and experiment differs sharply from the epistemological theory of naive falsificationism."
Theory

"There is no falsification before the emergence of a better theory."
Theory

"Einstein's results again turned the tables and now very few philosophers or scientists still think that scientific knowledge is, or can be, proven knowledge."
Knowledge

"Research programmes, besides their negative heuristic, are also characterized by their positive heuristic."
Negative

"Philosophy of science without history of science is empty; history of science without philosophy of science is blind."
History
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