Tā de wénzhāng qīngshuǐchūfúróng, méiyǒu yīdiǎn diāozhuó.
Her essays are 'a lotus rising from clear water' - not a trace of artifice.
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history
From Li Bai's (李白, Tang dynasty) poem 清水出芙蓉,天然去雕饰 - "a lotus rising from clear water, natural and free of ornament." Originally a compliment to Wei Liangzai's poetry; now shorthand for any beauty, literary or personal, that needs no embellishment.
usage
Almost always cited together with its twin 天然去雕饰. 芙蓉 here is the lotus flower (the modern 芙蓉 can also mean hibiscus); the canonical reading is lotus.