Dasein come fondamento dell'etica e della religione

This paper addresses the question of the foundations of ethics and religion in Martin Heidegger’s thought, showing how these domains cannot be understood without a radical rethinking of the ontological-existential categories through which the human being is conceptualized. By examining the Introduction to the Phenomenology of Religion (1920–21), the lecture Phenomenology and Theology (1927), and the Letter on Humanism (1946), the paper highlights how Heidegger’s reflections on the religious and the ethical become occasions for a methodological and conceptual reconfiguration, centered on the notion of "formale Anzeige" and on the essential role of language. Language, no longer conceived as logic but as the dwelling place of Being, becomes the site where the ontological difference is safeguarded and, with it, the very possibility of an “original” ethics. The article thus shows how Heidegger’s thought, far from denying ethics and religion, identifies their authentic conditions of access and comprehension.