Rịba ama amaokwu a dị n'okpuru ma zaa ajụjụ ahụ mgbe e mesịrị n'otu asụsụ ahụ dị ka amaokwu ahụ:  N'ịrụ ọrụ n'ọtụtụ mgbasa ozi, Xu na-emepụta ihe ndị na-ajụ echiche nke ịkọwa ihe ọ pụtara site n'asụsụ, na-egosi etu enwere ike isi megharịa ma ihe ọ pụtara ma okwu edere ede. O nwetara onyinye MacArthur Foundation na July 1999, nke e nyere ya maka "ihe ọhụrụ, ihe okike, nduzi onwe onye, na ikike inye aka dị mkpa na ọha mmadụ, karịsịa na mbipụta akwụkwọ na calligraphy".  Ajụjụ: N'ihi gịnị ka Xu ji nweta onyinye MacArthur Foundation?
maka "ihe ọhụrụ, ihe okike, nduzi onwe onye, na ikike inye onyinye dị mkpa nye ọha mmadụ,