The “Christian Natural Philosophy” of Otto Casmann (1562–1607): A Case Study of Early Modern Mosaic Physics

This article aims to present a detailed analysis of the “Christian natural philosophy” elaborated by the German humanist philosopher and theologian Otto Casmann (1562–1607) in his various works. To this end, Casmann’s general idea of philosophia Christiana is discussed and critically evaluated. Regarding natural philosophy, or physics, attention is paid mainly to topics such as cosmogony and cosmology, which Casmann promised to have developed biblically and independently of the pagan (namely Aristotelian) tradition. However, when Casmann’s natural philosophy is analyzed in detail, his resolute emphasis on the literal reading of the Bible, the cornerstone of his entire concept, turns out to be problematic. Similarly, despite his resolutions, his natural‑philosophical views are, to a considerable extent, still dependent on Aristotelian terms and concepts.