话说唐朝诗人刘禹锡因政治革新被贬官，后回朝，司空李绅设宴款待。席间，歌妓载歌载舞，李绅得意洋洋。刘禹锡心中五味杂陈，触景生情，挥笔写下《竹枝词》二首，其中一首写道：“高髻云鬟宫样妆，春风一曲杜韦娘。司空见惯浑闲事，断尽江南刺史肠。”诗中“司空见惯浑闲事”一句，描写了李绅在歌舞升平中麻木不仁的景象，暗讽他长期以来沉溺于享乐，对百姓疾苦漠不关心。这首诗，表达了诗人对当时社会现实的深刻批判，也反映了诗人忧国忧民的赤子之心。此后，“司空见惯”就成了人们用来形容某种事物常见、不足为奇的成语。
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