ABSTRACT
We should think of the interactions of human society, both within national borders and beyond them, across the entirety of human history, as resembling a collection of different densities of a myriad of particles in a body of moving liquid. Liberal philosophers are confronted with a continuum of small differences, starting in the local region of cultural and religious communities and building up to the normative constituents of civilian statehood and global citizenship. A fair global economy cannot be created by the economically developed countries committing a certain percentage of their GDP to economic aid in the form of money transfers to "developing countries." Migration between countries at a similar level of economic development will follow the rule: citizens have the (cosmopolitan) right to emigrate, but not the right to immigrate. This vision extends the cosmopolitan order both upwards and downwards: subnational, regional structures will be enhanced and, at the same time, transnational structures will be created.
