" Yí cùn guāngyīn yí cùn jīn " zhè jù shī shì Wáng Zhēnbái xiě de.
The line "an inch of time is an inch of gold" was written by Wang Zhenbai.
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history
He wrote it while studying at the White Deer Grotto, 白鹿洞, on 庐山, later the site of the famous 白鹿洞书院 academy. The line is now almost always followed by 寸金难买寸光阴, a later addition.
