After preliminarily pointing to the undeniable differences between Jonas’ philosophical biology and Schelling’s philosophy of nature, I contend that, besides their divergencies, the two philosophers agree on several important points. I then show to what extent, based on these elements of convergence, their two approaches could even be taken as complementary. In the core of my paper I lay emphasis on what I believe to be the main ground for the complementarity of the two philosophical inquiries, that is to say, (...) their common radicalization and superseding of Kant’s principle of self-organization. In this respect – all differences considered – they both can be said to delineate a philosophy of the organic that can fruitfully contribute, even better than Kant’s input, to the currently widely discussed topic of biological autonomy. (shrink)