Karl Popper





Karl Popper

Author profile


born
in Vienna, Austria
July 28, 1902

died
September 17, 1994

gender
male

website

genre

influences
Socrates, Aristotle, Kant, Schopenhauer, Hegel, Einstein, Kierkegaard, ...more


About this author

Sir Karl Raimund Popper CH, FRS, FBA (28 July 1902 – 17 September 1994) was an Austrian and British philosopher and a professor at the London School of Economics. He is counted among the most influential philosophers of science of the 20th century, and also wrote extensively on social and political philosophy. Popper is known for repudiating the classical observationalist/inductivist account of scientific method by advancing empirical falsification instead; for his opposition to the classical justificationist account of knowledge which he replaced with critical rationalism, "the first non justificational philosophy of criticism in the history of philosophy" and for his vigorous defense of liberal democracy and the principles of social criti ...more


Average rating: 4.02 · 7,766 ratings · 326 reviews · 86 distinct works · Similar authors
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The Open Society and Its En...
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Conjectures and Refutations...
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The Poverty of Historicism
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Objective Knowledge: An Evo...
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All Life Is Problem Solving
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Unended Quest: An Intellect...
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Popper Selections
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More books by Karl Popper…
“The so-called paradox of freedom is the argument that freedom in the sense of absence of any constraining control must lead to very great restraint, since it makes the bully free to enslave the meek. The idea is, in a slightly different form, and with very different tendency, clearly expressed in Plato.

Less well known is the paradox of tolerance: Unlimited tolerance must lead to the disappearance of tolerance. If we extend unlimited tolerance even to those who are intolerant, if we are not prepared to defend a tolerant society against the onslaught of the intolerant, then the tolerant will be destroyed, and tolerance with them. — In this formulation, I do not imply, for instance, that we should always suppress the utterance of intolerant philosophies; as long as we can counter them by rational argument and keep them in check by public opinion, suppression would certainly be unwise. But we should claim the right to suppress them if necessary even by force; for it may easily turn out that they are not prepared to meet us on the level of rational argument, but begin by denouncing all argument; they may forbid their followers to listen to rational argument, because it is deceptive, and teach them to answer arguments by the use of their fists or pistols. We should therefore claim, in the name of tolerance, the right not to tolerate the intolerant. We should claim that any movement preaching intolerance places itself outside the law, and we should consider incitement to intolerance and persecution as criminal, in the same way as we should consider incitement to murder, or to kidnapping, or to the revival of the slave trade, as criminal.”
Karl Popper, The Open Society and Its Enemies

“Science may be described as the art of systematic oversimplification.”
Karl Popper

“No rational argument will have a rational effect on a man who does not want to adopt a rational attitude.”
Karl Popper

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