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|Born||29 August 1892
Taganrog, Russian Empire
|Died||28 April 1964
|Main interests||History of science
Philosophy of science
Koyré was born in the city of Taganrog, Russia on 29 August 1892 into a Jewish family. His original name was Александр Владимирович Койранский, Alexandr Vladimirovich Koyranskiy. In Russia he studied in Tiflis, Rostov-on-Don and Odessa, before pursuing his studies abroad.
In Göttingen, Germany (1908–1911) he studied under Edmund Husserl and David Hilbert. Husserl did not approve of Koyré's dissertation, whereupon Koyré left for Paris, to study from 1912 under Bergson, Brunschvicg, Lalande, Delbos and Picavet. Following Husserl's Cartesian Meditations, a series of lectures given in Paris and one of the more important of Husserl's later works, Koyré met again with Husserl repeatedly and influenced his understanding of Galileo.
In 1914 he joined the French Foreign Legion as soon as the war broke out. In 1916 he volunteered for a Russian regiment fighting on the Russian front, following a cooperation agreement between the French and Russian governments.
From 1922 Koyré taught in Paris at the École pratique des hautes études (EPHE), and became a colleague of Alexandre Kojève, who eventually replaced him as lecturer on Hegel. In 1932 the EPHE created a Department of History of Religious Thought in Modern Europe for him to chair. He retained this position until his death.
During the years 1932–34, 1936–38, and 1940–41, Koyré taught in Fuad University (later Cairo University) where, along with André Lalande and others, he introduced the study of modern philosophy to Egyptian academia. His most important student in Cairo was Abdel Rahman Badawi (1917–2002) who is considered the first systematic modern Arab philosopher. Koyré later joined the Egyptian National Committee of the Free French.
During World War II, Koyré lived in New York City, and taught at the New School for Social Research. After World War II, he was a frequent visitor to the United States, spending half a year at the Institute for Advanced Study at Princeton each year from 1955 to 1962 and also teaching as a visiting professor at Harvard, Yale, the University of Chicago, the University of Wisconsin, and Johns Hopkins. His lectures at Johns Hopkins would form the nucleus of one of his best known publications, From the Closed World to the Infinite Universe (1957). Koyré was general secretary and Vice President of the Institut International de Philosophie, a member of the American Academy of Arts and Sciences, a recipient of the George Sarton Medal of the History of Science Society, and of the Silver Medal of the Centre National de la Recherche Scientifique.
He died in Paris on 28 April 1964.
Though best known as a philosopher of science, Koyré started out as a historian of religion. Much of his originality for the period rests on his ability to ground his studies of modern science on the history of religion and metaphysics.
Koyré focused on Galileo, Plato, and Isaac Newton. His most famous work is From the Closed World to the Infinite Universe, a series of lectures given at The Johns Hopkins University in 1959 on the rise of early modern science and the change of scientists' perception of the world during the period from Nicholas of Cusa and Giordano Bruno through Newton. Though the book has been widely heralded, it was a summation of Koyré's perspective rather than an original new work.
Koyré was suspicious of scientists' claims to prove natural or fundamental truths through experiments. He argued these experiments were based on complicated premises, and that they tended to prove the outlook behind these premises, rather than any real truth. He repeatedly critiqued Galileo's experiments, claiming that some of them could not have taken place, and brought into question the results Galileo claimed and which modern historians of science had hitherto accepted.
According to Koyré, it was not the experimental or empirical nature of Galileo's and Newton's discoveries that carried the Scientific Revolution of the 16th and 17th centuries, but a shift in perspective, a change in theoretical outlook toward the world. Koyré strongly criticized what he called the “positivist” notion that science should only discover given phenomena, the relations between them and certain laws that would help to describe or predict them. To Koyré science was, at its heart, theory: an aspiration to know the truth of the world, of uncovering the essential structures from which phenomena, and the basic laws that relate them, spring.
Koyré was also interested in the correlations between scientific discoveries and religious or philosophical world views. Not unlike Husserl in his later studies, Koyré claimed that modern science had succeeded in overcoming the split, inherent in traditional Aristotelian science, between Earth and Space, since these were now both seen as governed by the same laws. On the other hand, another split had now been created, between the phenomenal world inhabited by man and the purely abstract, mathematical world of science. Koyré aimed to show how this “first world”, the world of human dwelling (personal and historical), apparently irrelevant to modern naturalistic research, was by no means irrelevant for the very constitution and development of this research. Koyré consistently sought to show how scientific truth is always discovered in correlation with specific historical, even purely personal, circumstances.
Koyré’s work can be seen as a systematic analysis of the constitutive achievements that resulted in scientific knowledge, but with particular emphasis on the historical, and specifically human, circumstances that generate the scientists' phenomenal world and serve as foundation for all scientific constitutions of meaning.
Koyré influenced major European and American philosophers of science, most significantly Thomas Kuhn, Imre Lakatos and Paul Feyerabend. In 1961 he was awarded the Sarton Medal by the History of Science Society.
In the course of his studies of Galileo, Koyré famously claimed that the experiments with weights falling and rolling on inclined planes that Galileo described in his writings probably had not been carried out in practice, but were instead thought experiments intended to illustrate his deductions. Koyré argued that the precision of the results reported by Galileo was not possible with the technology available to him and quoted the contemporary judgment of Marin Mersenne, who had questioned the feasibility of reproducing Galileo's results. Furthermore, according to Koyré, Galileo's science was largely a product of his Platonist philosophy and did not really derive from experimental observations.
Koyré's conclusions were first challenged in 1961 by Thomas B. Settle, who as a graduate student at Cornell University succeeded in reproducing Galileo's experiments with inclined planes using the methods and technologies described in Galileo's writing. Later, Stillman Drake and others worked through Galileo's notes and demonstrated that Galileo was a careful experimentalist whose observations did play the role in the development of his scientific system that he later claimed in his published work.
- La Philosophie de Jacob Boehme, Paris, J. Vrin, 1929.
- Études galiléennes, Paris: Hermann, 1939
- From the Closed World to the Infinite Universe, Baltimore: John Hopkins Press, 1957
- La Révolution astronomique: Copernic, Kepler, Borelli, Paris: Hermann, 1961
- The Astronomical Revolution Methuen, London 1973
- Introduction à la lecture de Platon, Paris: Gallimard 1994
- Metaphysics & Measurement: Essays in Scientific Revolution Harvard University Press 1968
- A Documentary History of the Problem of Fall from Kepler to Newton, pp329–395 Transactions of the American Philosophical Society vol 45 1955
- Newtonian Studies Chapman & Hall 1965
- Settle, Thomas B. (1961). "An Experiment in the History of Science". Science 133 (3445): 19–23. Bibcode:1961Sci...133...19S. doi:10.1126/science.133.3445.19. PMID 17759858.
- "Experiment - Galileo Galilei"
- Jean-François Stoffel, Bibliographie d'Alexandre Koyré, Firenze : L.S. Olschki, 2000. (Online at koyre.cnrs.fr, Alexandre Koyré's Archives Project.)
- Marlon Salomon. "Alexandre Koyré, historiador do pensamento". Goiânia: Almeida & Clément, Brazil, 2010.
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- Alexandre Koyré's Online Archives Project (papers, manuscripts, notes, etc.) realised by Center Alexandre- KOYRE/CRHST in partnership with CN2SV/CNRS)
- Mailing list about Alexandre Koyré's archives : A mailing list about A. Koyré archives
- Center Alexandre-KOYRE/CRHST, history of science and technologies center (Paris, France) supported by CNRS, EHESS, Cité des Sciences et de l'Industrie and Muséum National d'Histoire Naturelle.
- The Alexandre Koyre Prize at the International Academy of the History of Science.