节奏文明，铁道文化，胶济铁路，书信文化博物馆，趵突泉，济南

在济南，我听见了三种文明的声音：沉默的铁轨、仍在书写的字、以及泉水不息的回响。铁未响，但信已寄；泉在流，文明未断。 In Jinan, I heard three voices of civilization: the silence of steel rails, the letters still being written, and the unending murmur of spring water. The iron did not ring, but the message was sent; the spring flows on, and the thread of culture remains unbroken.