《宋书·志·卷三十三》
刘向说： 凡下雨，是阴气的作用，下雪，又是雨受到阴气的作用。
刘向曰： 凡雨，阴也，雪又雨之阴也。
Liu Xiang said: "All rain is the effect of yin energy, and snow is the effect of rain on yin energy."
<s>[INST] Convert the following English text into Classical Chinese: Liu Xiang said: "All rain is the effect of yin energy, and snow is the effect of rain on yin energy." [/INST] 刘向曰： 凡雨，阴也，雪又雨之阴也。</s>
Convert the following English text into Classical Chinese: Liu Xiang said: "All rain is the effect of yin energy, and snow is the effect of rain on yin energy."
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刘向曰： 凡雨，阴也，雪又雨之阴也。
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