1) Status quaestionis and research trends: a brief survey; 2) Issues at stakes in the transition from Nature to Spirit: a brief
historical survey and some introductory remarks; 3) Contribution to the discussion: A. The Idea as being and its phenomenological justification; B. Negativity and positivity of Nature C. The path of return of nature to spirit: the philosophy of nature’s
emancipation from externality; 4) The Transition to Spirit; 5) Final systematic remarks on the relation between Nature and Spirit