The criterion was first proposed by philosopher of science Karl Popper.

( This falsifiability-criterion was popularized by Karl Popper.

In his two volume work The Open Society and Its Enemies, Karl Popper used the term " conspiracy theory " to criticize the ideologies driving fascism, nazism, and Stalinism.

) Karl Popper viewed Peirce as " one of the greatest philosophers of all times ".

Karl Popper pioneered the use of the term " conjecture " in scientific philosophy.

* Popper, Karl R. ( 1945 ) The Open Society and Its Enemies

Karl Popper defined democracy in contrast to dictatorship or tyranny, thus focusing on opportunities for the people to control their leaders and to oust them without the need for a revolution.

Charles Sanders Peirce was a fallibilist and the most developed form of fallibilism can be traced to Karl Popper ( 1902 – 1994 ) whose first book Logik Der Forschung ( The Logic of Scientific Discovery ), 1934 introduced a " conjectural turn " into the philosophy of science and epistemology at large.

Philosophers associated with empiricism include Aristotle, Alhazen, Avicenna, Ibn Tufail, Robert Grosseteste, William of Ockham, Francis Bacon, Thomas Hobbes, Robert Boyle, John Locke, George Berkeley, David Hume, Leopold von Ranke, John Stuart Mill, and Karl Popper.

According to Karl Popper these experiments showed that the class of " hidden variables " Einstein believed in is erroneous.

The concept first popularized by Karl Popper, who, in his philosophical criticism of the popular positivist view of the scientific method, concluded that a hypothesis, proposition, or theory talks about the observable only if it is falsifiable.

In his philosophy of science, which has much in common with that of his good friend Karl Popper, Hayek was highly critical of what he termed scientism: a false understanding of the methods of science that has been mistakenly forced upon the social sciences, but that is contrary to the practices of genuine science.

Hayek had a long-standing and close friendship with philosopher of science Karl Popper, also from Vienna.

Karl Popper: The Formative Years, 1902 – 1945.

Philosopher of science Karl Popper, in his Conjectures and Refutations, critiqued such claims of the explanatory power or valid application of historical materialism by arguing that it could explain or explain away any fact brought before it, making it unfalsifiable.

* Karl Popper, The Poverty of Historicism, attacks the notion that the study of history can be used to predict the future.

The Austrian-English philosopher Karl Popper attacked a peculiar version of historicism along with the ( hard ) determinism which he argued were at its root.

Karl Popper used the term historicism in his influential books The Poverty of Historicism and The Open Society and Its Enemies, to mean: " an approach to the social sciences which assumes that historical prediction is their primary aim, and which assumes that this aim is attainable by discovering the ' rhythms ' or the ' patterns ', the ' laws ' or the ' trends ' that underlie the evolution of history ".

* Karl Popper, 1945.

* Karl Popper, 1993.

During the Cold War, Karl Popper criticized Rousseau for his association with nationalism and its attendant abuses.

* 1902 – Karl Popper, Austrian-English philosopher ( d. 1994 )

6-1 you will be able to see that I fully accept the recent philosophical achievements of Sir Karl Popper with his concept of three worlds.

But Sir Karl Popper and I are interactionists, and what is more, trialist interactionists!

In The Grammar of Science, Preface to the 2nd Edition, 1900, Karl Pearson wrote, " There are many signs that a sound idealism is surely replacing, as a basis for natural philosophy, the crude materialism of the older physicists.

He wrote Karl August Böttiger.

The English composer John McCabe wrote his Variations on a Theme of Karl Amadeus Hartmann ( 1964 ) in tribute.

Karl Marx wrote about the creation of nations as requiring a bourgeois revolution and an industrial economy.

According to German philosopher Karl Jaspers, when Spinoza wrote " Deus sive Natura " ( God or Nature ) Spinoza did not mean to say that God and Nature are interchangeable terms, but rather that God's transcendence was attested by his infinitely many attributes, and that two attributes known by humans, namely Thought and Extension, signified God's immanence.

The writer Theodor Fontane, painter Adolf von Menzel, and Dadaist Kurt Schwitters were all guests ; Karl Liebknecht, the Spartacus Communist movement leader read a lot here and even made some key political speeches from the pavement terrace, while author Erich Kästner wrote part of his 1929 bestseller for children, Emil und die Detektive ( Emil and the Detectives ), on the same terrace and made the café the setting for an important scene in the book.

With a collaborator who published as " Dr. Karl Hacks ," Taxil wrote another book called the Devil in the Nineteenth Century, which introduced a new character, Diana Vaughan, a supposed descendant of the Rosicrucian alchemist Thomas Vaughan.

A major breakthrough in the methodology and popularization of volumetric analysis was due to Karl Friedrich Mohr, who redesigned the burette by placing a clamp and a tip at the bottom, and wrote the first textbook on the topic, Lehrbuch der chemisch-analytischen Titrirmethode ( Textbook of analytical-chemical titration methods ), published in 1855.

This attitude rose even though the philosopher Karl Wilhelm Friedrich Schlegel wrote about Forster at the beginning of 19th century:

The German composer Karl Amadeus Hartmann wrote eight symphonies.

Vladimir Lenin wrote: " After his friend Karl Marx ( who died in 1883 ), Engels was the finest scholar and teacher of the modern proletariat in the whole civilised world ....

The German historian Jost Dülffer wrote that Raeder would have been better off in preparing the Z Plan with following the advice of Commander Hellmuth Heye who had advocated in a 1938 paper a guerre-de-course strategy of Kreuzerkrieg ( cruiser war ) in which groups of Panzerschiffe and submarines would attack British convoys or Karl Dönitz who also advocated a guerre-de-course strategy of using " wolf-packs " of submarines to attack British commerence.

In 1958 Karl Beck, a former pediatric doctor in Bayreuth wrote an article in a local newspaper claiming a relationship between nuclear weapons testing and cases of dysmelia in children.

The specific term ' sociology of knowledge ' first came into widespread use in the 1920s, when a number of German-speaking sociologists, most notably Max Scheler, and Karl Mannheim, wrote extensively on it.

Karl Philipp, Prince of Schwarzenberg, Austrian ambassador of France, wrote of the baptism:

In a well-known letter to Arnold Ruge, Karl Marx wrote: " if constructing the future and settling everything for all times are not our affair, it is all the more clear what we have to accomplish at present: I am referring to ruthless criticism of all that exists, ruthless both in the sense of not being afraid of the results it arrives at and in the sense of being just as little afraid of conflict with the powers that be.

In 1846, in the midst of the liberal milieu that led to the Revolutions of 1848, the German writer Karl Gutzkow ( 1811 – 1878 ) wrote Uriel Acosta, a play about Costa's life.

The German political theorist and sociologist Karl Marx ( 1818 – 1883 ) was the primary founder of Marxism, although he himself wrote little about the nature of the dictatorship of the proletariat, with his published works instead largely focusing on analysing and criticising capitalist society.

In that year, Karl Marx wrote to him, saying:

Zachariae edited with Karl Joseph Mittermaier the Kritische Zeitschrift fur Rechtswissenschaft und Gesetzgebung des Auslandes, and the introduction which he wrote illustrates his wide reading and his constant desire for new light upon old problems.

* also see the Karl King Page ( each of these " March Kings " wrote a march saluting the other )

* In 1783, Austrian composer Karl Ditters von Dittersdorf wrote twelve symphonies on selected stories of the Metamorphoses ; only six survive, corresponding to stories from the first six books.

In the wake of one of their breakups, Arendt moved to Heidelberg, where she wrote her dissertation, under the existentialist philosopher-psychologist Karl Jaspers, on the concept of love in the thought of Saint Augustine.

Social geographer David Harvey sums up the differences between Marx's usage of these concepts and Schumpeter's: " Both Karl Marx and Joseph Schumpeter wrote at length on the ' creative-destructive ' tendencies inherent in capitalism.