This collection of six essays centers on Professor Koyre's great the relative importance of metaphysics and observation, with controlled experiment a kind of marriage between the two. Professor Koyre's thesis might be summed up as a claim that when one is seeking to explain the scientific revolution, attention must be concentrated on the philosophical outlook of the scientist and away from speculative theories.At the time of his death, Alexandre Koyre was a professor at the Ecole Pratique des Hautes Etudes (Sorbonne) and a memeber of the Institute for Advanced Study in Princeton.
Aleksandr Vladimirović Kojre, published as Alexandre Koyré was a philosopher and historian of science. He contributed to the development of the history of science in France and to its diffusion in the United States after the Second World War.
In the 1930's, Koyré began the research that made him one of the most eminent historians of twentieth century scientific thought, the first phase of which ended before the Second World War with the publication of the three volumes of Galilean Studies. Koiré became one of the protagonists of French historical epistemology, a new discipline that claimed to study the history of scientific thought as such and as a whole.