Cosmopolitanism is the idea that all human beings are members of a single community. Its adherents are known as cosmopolitan or cosmopolite. Cosmopolitanism is both prescriptive and aspirational, believing humans can and should be "world citizens" in a "universal community". The idea encompasses different dimensions and avenues of community, such as promoting universal moral standards, establishing global political structures, or developing a platform for mutual cultural expression and tolerance.

For example, Kwame Anthony Appiah articulates a cosmopolitan community where individuals from varying locations (physical, economic, etc.) enter relationships of mutual respect despite their differing beliefs (religious, political, etc.). By comparison, Immanuel Kant envisioned a cosmopolitan world where armies were abolished and humans were governed under a representative global institution. In all instances, proponents of cosmopolitanism share an emphasis that all humans should form one cohesive and united community.

In a looser but related sense, "cosmopolitan" is also used to describe places where people of various ethnic, cultural and/or religious backgrounds live together and interact with each other.

Source: Wikipedia

1. Cosmopolitanism, world citizenship, is reactionary ideology that teaches the renunciation of national traditions and cultures, patriotism, and state and national sovereignty. Cosmopolitanism reflects the nature of capital, which strives to where it can expect the greatest profit.

2. Cosmopolitanism is empty. People cannot develop unless they belong to a culture. Even if they rebel against it and transform it entirely, they still belong to a stream of tradition. But if the stream dries up, as, for instance, where men and women are not products of a culture, where they do not have kith and kin and feel closer to some people than to others, where there is no native language -- that would lead to a tremendous desiccation of everything human; and people will sooner or later rebel against uniformity.

(F) Fuzzy exceptional problems