Francis Fukuyama's essay The End of History famously makes the argument that all civilisations share common fundamental values and are in fact at the point of global uniformity.
Samuel Huntingdon disagrees and, as the title of his essay's The Clash of Civilisations indicates, he makes his counterpoint in strong terms.
A good presentation of Quine's "gavagai" thought experiment is here.
The argument is in Quine's Word & Object, on Course Reserve.
Thomas Nagel's article is on-line here (as well as being on Course Reserve.)