Abstract

The typescript of the following lecture is preserved in the archive of Adolf Portmann, University Library Basel, NL 345. The typescript has the heading “Lecture Three” and the subtitle “The Language of Nature Reread.” As the heading “Lecture Three” suggests, the lecture was part of a series; details about the location and dates of the series are not listed. From the text itself we are informed that the series was devoted to the topic of “man in nature” and the preceding lectures were specifically related to the philosophical biology of Adolf Portmann and the opposition of his approach to the Galilean scientific ontology. “The Language of Nature Reread” continues the topic and focuses on the epistemology of Michael Polanyi, whose theory of tacit knowing is argued to provide a “philosophical accounting” for Portmann’s biological program.