Written in dialogue with the lecture of Thomas De Koninck on human dignity, this commentary brings in some philosophical remarks on the founding principles of the concept of human dignity, together with a reflection on the various contexts of it’s application chosen by the author to build his argument. On the level of principles, it is mainly through the notions of human nature and the priority of the human spirit that De Koninck establishes the foundations of human dignity; regarding experience, the philosopher recognizes the main importance of solidarity and hospitality. In my brief remarks, I express some comments on his position in relation with the question of the universalit of rights, and I underline the relations with the ethical thought of both John Rawls and Kant, in particular to the concept of the end in itself.