The attempt in this article is to reflect on the notion of hospitality, building on Derrida's engagement with the notion. In doing so, I visit some of the debates on cosmopolitanism, a term which, I believe, is sometimes used overenthusiastically, neglecting the negative implications it might carry. Besides, I observe the same uncritical stance towards the reception of Kant's notion of `universal hospitality', developed in his famous piece on `Perpetual Peace', a text that has been at the core of the (...) recent debates on cosmopolitanism. I revisit Kant's text to discuss the implications of his project. I distinguish between `the other' and `the stranger', and try to develop a politics and ethics of hospitality due to the stranger. I conclude with some implications of `not being home'. (shrink)