The two treatises that make up this book show how Heidegger examines renewed, between 1938 and 1942, from the horizon of thinking according to the history of being, the concepts of "negativity" and "experience" of Hegel's metaphysics. For this confrontation with Hegelian philosophy, Heidegger considers that a point of view must be found at its level and a principle that satisfies the configuration of the system through all its spheres. It cannot be a point of view superior to the maximum attained of the self-consciousness of the mind, but must be found in Hegelian philosophy itself, but as its foundation hidden from itself, essentially unattainable and indifferent. Negativity is that fundamental determination of Hegelian philosophy whose examination, through the different relations in which it appears, leads to a more original point of view, from which it can truly be seen. In the second treatise, Heidegger, referring to the 'Introduction' of the Phenomenology of Spirit, wonders about the particular position that this work acquires within the framework of the system. In it it is possible to perceive, according to Heidegger, the privileged instant in the history of being in which the abyss of experience appears on the horizon. Compared to the study already published in "Caminos del Bosque" with the title "The concept of experience in Hegel", we find here a different walk and language and with a proposal of greater transcendence.