管道穿行間，游遍倫敦 - 博物館篇之大英博物館（下）
Inspite of the vast size of the country， and the periodic eruptions of social unrest within or invasion from outside， China’s rulers have always sought a single， strong， unified state administered by an educated elite. The bonds of society have been held in place by language， codes of law， custom and ceremony， as well as by the wide distribution of the products of the arts and manufacturing.