In this article I explore how cosmopolitanism can be a challenge for ordinary language philosophy. I also explore cosmopolitan aspects of Stanley Cavell's ordinary language philosophy. Beginning by considering the moral aspects of cosmopolitanism and some examples of discussions of cosmopolitanism in philosophy of education, I turn to the scene of instruction in Wittgenstein and to Stanley Cavell's emphasis on the role of autobiography in philosophy. The turn to the autobiographical dimension of ordinary language philosophy, especially its use of "I" and "We", becomes a way to work on the tension between the particular and the universal claims of cosmopolitanism. I show that the autobiographical aspects of philosophy and the philosophical significance of autobiographical writing in ordinary language philosophy can be seen as a test of representativeness-a test of the ground upon which one stands when saying "I", "We" and "You.".