Johannes Clauberg, born in Solingen in 1622, served as the founding Rector of the University of Duisburg. A prominent proponent of Cartesian doctrines in Germany, he bridged the gap between traditional Aristotelian education and the emerging rationalist methodologies of the seventeenth century. His work laid foundational conceptual frameworks for the development of ontology as a distinct scientific discipline.
Academic Formation and Early Work
Clauberg received his education within the Aristotelian tradition across cities including Köln, Moers, and Bremen. During his studies in Groningen under the supervision of Tobias Andreae, he engaged with reformed variations of Aristotelian thought. By 1647, he produced his first metaphysical treatise, Elementa philosophiae sive Ontosophia. Subsequent travels through France and England allowed him to study Cartesian philosophy under Johannes de Raey at Leiden.
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Appointed professor of philosophy and theology at Herborn in 1649, Clauberg eventually moved to the University of Duisburg in 1651 following friction with his colleagues. As one of the earliest advocates for the new philosophical doctrines in Germany, he became known as a scholastic Cartesian. He documented these ideas through extensive commentaries on the work of René Descartes, including his 1658 Paraphrasis in R. Descartes Meditationes de prima Philosophia.
Ontology and Intellectual Legacy
In his writing, Clauberg proposed that metaphysics should focus on the intelligible or the object in general, a concept he termed ontosophy or ontology. He argued that this science differed from theology by studying being in general rather than specific instances. His physical theories regarding the connection between soul and body emphasized stimulation without invoking direct divine intervention. He remained at the University of Duisburg until his death in 1665.
Fast facts
- Born: 1622, Solingen
- Died: 1665, Duisburg
- Primary Occupations: Theologian, philosopher, university teacher
- Institutional Roles: Founding Rector, University of Duisburg
- Notable Works: Elementa philosophiae sive Ontosophia, Logica vetus et nova
- Burial Location: Church of Our Saviour, Duisburg
Questions readers ask
What did Johannes Clauberg mean by ontosophy?
He used the term to describe a science dealing with being in general, or objects as known to the intellect, rather than being defined by specific properties.
Where did Johannes Clauberg teach during his career?
He taught at the University of Herborn starting in 1649, and later at the University of Duisburg from 1655 until his death in 1665.
Achievements
- Held posts at University of Duisburg
- Fields: philosophy and theology


