One way to maintain a commitment to openness when addressing the vexing question of national borders is to recognize that cosmopolitanism is a two-way street. Immanuel Kant teaches us that the circumstances in which we find ourselves must always be judged against the circumstances in which, but for chance, we might have found ourselves.
维护对开放的承诺同时又能应对国家疆界的复杂问题的一种方式是认识到世界主义是一条双向道路。康德教导我们说，我们所感知的自己所身处的环境是由我们碰巧可能所身处的环境来决定的。