This poem reads like a jingle, saying one thing over and over: cheer up, do not worry. The first line says, sing when things go well, let it go when they do not. The second says, however many worries and regrets there are, let them be. The last two lines are the most famous: if there is wine today, get drunk today; if worry comes tomorrow, worry tomorrow. The words for today, tomorrow and worry repeat, so the lines are light and easy to remember. But think about it: if a man has to keep telling himself not to worry, his worries must run very deep. These are the words of a disappointed man finding a little joy in hard times. Today people often quote the third line to describe someone who lives only for the moment and does not think ahead, which misses the bitter taste of the poem.
这首诗读起来像顺口溜,一个意思翻来覆去地说:想开点,别发愁。第一句说,顺心就唱,不顺心就算。第二句说,愁和恨再多,也随它去。后两句最有名:今天有酒,今天就喝醉;明天来了愁,明天再愁。句子里“今朝”“明日”“愁”都重复出现,读起来轻快好记。可是仔细想想,一个人要这样反复劝自己“别愁”,说明他心里其实愁得很深。这是失意的人苦中作乐的话。今天人们常用“今朝有酒今朝醉”形容只顾眼前、不想以后,这和诗里的苦涩味道不太一样。