Wilfrid Sellars - Naturalism and Ontology - YouTube

https://www.youtube.com/watch?v=6UiV-vMOueY

Lecture 1 0:00:00 Lecture 2 1:14:58 Lecture 3 2:35:32 Lecture 4 3:48:06 The John Dewey Lectures for 1973-4 presented by Wilfrid Sellars.