159. 送魏万之京（李颀）

按时间顺序，应该是昨夜微霜初降、清晨渡河闻别歌，诗偏从「朝闻」落笔，第二句再退回昨夜。这一倒装把送别的临场感放在最前面：读者先听见歌声，才慢慢知道这场离别发生在霜后的渡口。微霜初渡河五个字的主语悬而未决——是霜初降于河，是人初渡河——李颀不解决它，因为解决就没有味道了：寒意是人和季节一同渡过去的。前人评此诗「炼句设色，字字工稳」，头一联的工稳就工稳在这种看似随口的安排上。

In chronological order it should be: last night the first frost, this morning the crossing and the parting song. The poem starts instead with this morning I heard, and steps back to last night only in the second line. The inversion puts the immediacy of parting first: the reader hears the song before learning that the farewell took place at a frost-rippled ford. In the five characters the first light frost crossed the river the subject is left unresolved — did the frost cross, or the man? Li Qi refuses to settle it, because settling it would kill the point: the cold crossed together with the man and the season. Earlier critics praised this poem for its steady phrasing and coloring, and the steadiness of the first couplet lies precisely in an arrangement that looks offhand.

颔联颈联没有一句写送行者自己，四句全是魏万眼前的路：雁声、云山、关城、御苑，按行程排下来就是一张路线图。雁声在起程时听，云山在途中过，关城树色是将近潼关，御苑砧声是到了长安。李颀比魏万年长，诗里对这位后辈的关切全用这种替他「预演」行程的方式说出，不用一个担忧的词。砧声向晚多一句尤其体贴：捣衣声在长安傍晚最稠，那是家家赶制寒衣的声音，客人听来格外冷。结尾的嘱咐也是顺着这条路说下来的——路替他走完了，话才轮到人生。

Not one line of the middle couplets concerns the sender; all four are the road in Wei Wan's eyes — goose cries, clouds and hills, the pass city, the imperial park — laid out by itinerary like a route map. The geese are heard at setting out, the clouds and hills passed en route, the tree color at the pass as Tongguan nears, the pounding in the park on arrival in Chang'an. Li Qi was the elder; all his care for the younger man takes the form of rehearsing the journey for him, without a single word of worry. The line on the laundry-pounding thickening toward evening is especially tender: that sound fills Chang'an's evenings when every household is making winter clothes, and to a traveler it is coldest. The final admonition follows the same road — only after walking his road for him does the poem speak of life itself.

尾联的劝诫有个容易忽略的层次：它先承认长安是行乐处。这个承认很重要——魏万赴京是去干谒求进，长安的繁华是他必然要面对的诱惑，李颀不假装这诱惑不存在，只说莫见、空令：不要一见就陷进去，免得岁月空过。史载魏万（后名魏颢）曾为访李白跋涉三千里，是个有执念的年轻人；李颀与他为忘年交，结尾这一劝因此更像长辈对有才而少历练者的提醒，而非泛泛的道德话。送别诗常以愁语作结，这首偏以告诫作结，反而显出交情的深。

The final couplet has an easily missed layer: it grants first that Chang'an is a place of pleasure. The grant matters — Wei Wan was going to the capital to seek advancement, and the city's pleasures were a temptation he would certainly face. Li Qi does not pretend the temptation away; he says only do not, on seeing it, let yourself fall in, lest the years come to nothing. The records tell how Wei Wan (later Wei Hao) once traveled three thousand li to find Li Bai — a young man with a consuming purpose. Li Qi and he were friends across generations, so the closing reminder reads as an elder's word to a gifted but unseasoned friend, not as stock moralizing. Parting poems conventionally end in sorrow; this one ends in advice, and the friendship reads deeper for it.