Probably the passage in the Communist Manifesto most frequently cited these days is a portrayal of the global spread of capitalism: All old-established national industries have been destroyed or are being destroyed. They are dislodged by new industries, whose introduction becomes a life and death question for all nations, by industries that no longer work up indigenous raw material, but raw material drawn from the remotest zones; industries whose products are consumed not only at home, but in every quarter of the globe. In place of the old wants, satisfied by the productions of the country, we find new wants, requiring for their satisfaction the products of distant lands. We have universal inter-dependence of nations .... All nations, on pain of extinction, [are compelled] to adopt the bourgeois mode of production; it compels them to introduce what it calls civilization into their midst, i.e., to become bourgeois themselves. In a word, it creates a world after its own image.
This article can also be found at the Monthly Review website, where most recent articles are published in full.