太古集
地數偶象圖

地數偶象圖

地數偶象圖

地爲純陰而有陰數。陰數有二、有四、有六、有八、有十。總而論之,共得三十,成坤之陰數,而爲偶者,偶者爲四正方,而兼乎中,此之是也。故曰,東八、西四、北六、南二、中央十,皆陰數也。陰之數,二四、六、八、十是也。地本方,故稱偶,天本圓,故稱奇。

End of chapter

Text and scans: Shidian Guji (Peking University – ByteDance open ancient texts). Edition details are given per book. Shidian Guji

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