This article examines the possibility of a phenomenologically based ethics by principally contrasting the respective positions of Levinas and Heidegger. The thesis is that Levinas’ critique of ontology does not correspond to Heidegger’s fundamental-ontological objective, which can not be presented in terms of an opposition between ethics and ontology, which again is a premise of Levinas’ prioritising of ethics. Bearing this in mind, we attempt to explore the capacities of an ethics founded on fundamental ontology, especially regarding the questions of justice and responsibility.

Keywords: Ethics; Ontology; Justice; Responsibility; Transcendence; Possibility.