Ernst Marcus (philosopher) explained

Ernst Moses Marcus (3 September 3, 1856, Kamen – 30 October, 1928 Essen) was a German lawyer and philosopher. He developed a theory of aether based on Immanuel Kant's posthumous work Opus Postumum, however sharply disagreeing with Erich Adickes interpretation. He used this to mount a criticism of Albert Einstein's theory of relativity.^[1] He was a major influence on Salomo Friedlaender.

Ernst was the son of Robert Ruben Marcus and Berta Marcus.^[2]

Marcus studied law in Bonn and Berlin. Whilst working as an Assessor in 1889 he developed an interest in philosophy. In 1890 he was appointed as a judge in Essen. In 1893 he married Berta Auerbach with whom he had three children.^[3]

In 1899 he started regular meetings with Salomo Friedlaender who admired his theses and became a firm supporter of him. Friedlaender referred to him by epithet the "Krupp of logic".

Works

• Kants Revolutionsprinzip (1902)
• Das Erkenntnisproblem (1905)
• Die Beweisfuehrung in der Kritik der reinen Vernunft (1914)
• Kants Weltgebaeude (1917)
• Das Problem der Excentrischen Empfindung und seine Losung (1918) Berlin: Verlag der Sturm
• Theorie einer natuerlichen Magie: Gegründet auf Kants Weltlehre (1924) Munich: Ernst Reinhardt.
• Kritik des Aufbaus der speziellen Relativitaetstheorie (1926)
• Die Zeit und Raumlehre Kants (1927)

His papers are held by the Leo Baeck Institute, New York.^[3]

Notes and References

1. Book: Keller . Christoph . Paranomia . 2018 . University of Heidelberg . Heidelberg .
2. Web site: Ernst Marcus . www.myheritage.com . My Heritage . 3 July 2019.
3. Web site: Guide to the Papers of Ernst Marcus (1856–1928)1898-1976AR 4322 / MF 1019 . digifindingaids.cjh.org . Center for Jewish History . 3 July 2019.