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Literally: There is no person that has 1000 good days (in a row), and no flower that stays red for 100 days.
人無千日好，花無百日紅 (traditional, Pinyin rén wú qiān rì hǎo, huā wú bǎi rì hóng, simplified 人无千日好，花无百日红)
- Nothing good lasts forever; all good things must come to an end.
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