Popper Quotes
When we seek a textbook case for the proper operation of science, the correction of certain error offers far more promise than the establishment of probable truth. Confirmed hunches, of course, are more upbeat than discredited hypotheses. Since the worst traditions of "popular” writing falsely equate instruction with sweetness and light, our promotional literature abounds with insipid tales in the heroic mode, although tough stories of disappointment and loss give deeper insight into a methodology that the celebrated philosopher Karl Popper once labeled as "conjecture and refutation.”.
Stephen Jay Gould
An open society such as ours is based on the recognition that our understanding of reality is inherently imperfect. Nobody is in possession of the ultimate truth. As the philosopher Karl Popper has shown, the ultimate truth is not attainable even in science. All theories are subject to testing and the process of replacing old theories with better ones never ends.
George Soros
The concept of substance leads to a materialist aspect of the mind. I speak instead of the spiritual existence of the self without mentioning any 'substance' properties. The great problem is 'how the self controls its brain'. This is dualistic, but not in terms of two substances. Instead it relates to the two worlds of Popper.
John Carew Eccles
Induction was shown to be untenable as a scientific method by Popper in The Logic of Scientific Discovery (1959). Instead, advances in scientific understanding come ideally from hypothetico-deductivism: firstly, development of a hypothesis in relation to a problem situation, and secondly, its testing in relation to all relevant knowledge and furthermore by its great explanatory power.
John Carew Eccles
By now many intellectuals regard theoretical or 'objective' knowledge as the only knowledge worth considering. Popper himself encourages the belief by his slander of relativism. Now this conceit would have substance if scientists and philosophers looking for universal and objective morality had succeeded in finding the former and persuaded, rather than forced, dissenting cultures to adopt the latter. This is not the case.
Paul Karl Feyerabend
Expressed egotism is, of course, no reason necessarily to disregard someone's work, but it is a warning signal. If someone can evaluate his work so poorly, is the work itself likely to be better? In many of his areas of intellectual interest, Popper's work is wanting.
Hayek did more to advance Popper professionally early in his career than anyone else, and Popper remembered his personal debt to Hayek. Over the years, he wrote him a number of appreciative letters.
Alan O. Ebenstein
Hayek expressed the greatest praise for Popper. Whether this was Hayek's ultimate view or a reflection of a deep, though subordinate, strain of personal modesty and humility that ran through him is an open question. Hayek's support was vital in Popper's career. During the late 1970s and early 1980s, Hayek was involved with an unsuccessful effort to obtain the Nobel Prize in Literature for Popper.
Alan O. Ebenstein
According to the most influential twentieth-century philosopher of science, Karl Popper, a theory is scientific only in so far as it is falsifiable, and should be given up as soon as it has been falsified. By this standard, the theories of Darwin and Einstein should never have been accepted.
John N. Gray
Libertarianism offers an alternative to coercive government that should appeal to peaceful, productive people everywhere.
No, a libertarian world isn't a perfect one. There will still be inequality, poverty, crime, corruption, man's inhumanity to man. But, unlike the theocratic visionaries, the pie-in-the-sky socialist utopians, or the starry-eyed Mr. Fixits of the New Deal and Great Society, libertarians don't promise you a rose garden. Karl Popper once said that attempts to create heaven on earth invariably produce hell. Libertarianism holds out, not the goal of a perfect society, but of a better and freer one. It promises a world in which more of the decisions will be made in the right way by the right person: you.
David Boaz
Kuhn as does Popper rejects the idea that science grows by accumulation of eternal truths.. But while according to Popper science is ‘revolution in permanence', and criticism the heart of the scientific enterprise, according to Kuhn revolution is exceptional and, indeed, extra-scientific, and criticism is, in ‘normal' times, anathema... The clash between Popper and Kuhn is not about a mere technical point in epistemology. It concerns our central intellectual values, and has implications not only for theoretical physics but also for the underdeveloped social sciences and even for moral and political philosophy. If even in science there is no other 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. Thus Kuhn's position would vindicate, no doubt, unintentionally, the basic political credo of contemporary religious maniacs (‘student revolutionaries').
Imre Lakatos
Any physical theory is always provisional, in the sense that it is only a hypothesis: you can never prove it. No matter how many times the results of experiments agree with some theory, you can never be sure that the next time the result will not contradict the theory. On the other hand, you can disprove a theory by finding even a single observation that disagrees with the predictions of the theory. As philosopher of science Karl Popper has emphasized, a good theory is characterized by the fact that it makes a number of predictions that could in principle be disproved or falsified by observation. Each time new experiments are observed to agree with the predictions the theory survives, and our confidence in it is increased; but if ever a new observation is found to disagree, we have to abandon or modify the theory.
Stephen Hawking