Jacob Klein (philosopher)
Klein was born in Libava, Russian Empire. He studied at Berlin and Marburg, where he received his Ph.D. in 1922. A student of Nicolai Hartmann, Martin Heidegger, and Edmund Husserl, he later taught at St. John's College in Annapolis, Maryland from 1937 until his death. He served as dean from 1949 to 1958.
Klein was affectionately known as Jasha. He was Heidegger's star graduate student in philosophy and one of the world's preeminent interpreters of Plato and the Platonic tradition. As one of many Jewish scholars who were no longer safe in Europe, he fled the Nazis. Simon Kaplan, a respected Jewish scholar in Russia, fled the Communists in similar fashion and later joined the faculty at St. John's as well.
The central thesis of his work Greek Mathematical Thought and the Origin of Algebra is that the modern concept of mathematics is based on the symbolic interpretation of the inherited understanding of the Greek take of numbers (arithmos).
Klein died in 1978 in Annapolis, Maryland.
- A Commentary on Plato's Meno (University of North Carolina Press, 1965)
- Greek Mathematical Thought and the Origin of Algebra (MIT Press, 1968), translated from German by Eva Brann, originally published in 1934-36.
- Plato's Trilogy: Theaetetus, the Sophist, and the Statesman (University of Chicago Press, 1977)
- Jacob Klein: Lectures and Essays ed. by Robert Williamson and Elliott Zuckerman (St. John's College Press, 1985)
- Burk, Robin (2004). "What I Learned from Some Eminent Émigré Scholars". Retrieved 2009-02-26.
- Burt C. Hopkins: The Origin of the Logic of Symbolic Mathematics: Edmund Husserl and Jacob Klein, Indiana University Press, 2011, ISBN 9780253356710.
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