Randall Collins works through the developments of philosophy in Asia before turning to the post-Greek West in order to show that the same principles, and even the same contents, run through the sociology of all philosophies. He makes the strong claim that there is not an essential East nor and essential West, in philosophy or otherwise. In fact, he claims that treating other cultures as having an enduring essence is just as ethnocentric as thinking that one's own culture does. Multiculturalism, he argues, has become politically correct, but it is just ethnocentrism at one remove.
I am still chewing on this one, but I incline to agree. Your thoughts?