Sameness of act: Aristotle, Heidegger and Zubiri

Abstract

Starting from the analysis of Zubiri’s use of aristotelian idea about the sameness of act (between intellection and intellected), the author points out the meaning of the completion that the Spanish philosopher proposed to Heidegger’s ontology: the idea of actuality which is related to the concept of enérgeia. The difference between actuality and actuity is used not only to underline the conception of being as an ulterior moment of reality, but to distinguish between two areas: «being present» and «coming out to the presence». At this stage, the article insists on acts’ invisible character. Acts, enérgeia and hyparchein don’t refer to the presence of actualizated things but to actualization. At the end, the author shows that the way in which Zubiri links the phenomenological analysis of acts to the enérgeia involves the conditions for a new anthropology. In this context, the otherness of reality doesn’t mean the formality of reality but the ontological difference between
«arising» and the thing that arises.