The structure of the city of Zurich demonstrates, as do most political and constitutional bodies in Switzerland, the tendency to strike a balance between the opposites, to unite divergent wishes in a middle solution. A way has been sought to reconcile the direct communal democracy handed down from the past with the exigencies of a modern city. It is clear that this attempt has in general been successful, when one sees how energetically Zurich has solved the problems presented to it. Stockholm is the city that provides commuter tickets for dogs on trains and buses. It is probably the most law-abiding town in Western Europe, with laws and restrictions, reforms and protections against almost everything. Boston therefore is often called the "hub of the world," since it has been the source and fountain of the ideas that have reared and made America.