對。幾何學，幾何推理邏輯，怎麽一下子就跳到文明興衰了？這中間，需要詳述，否則不知所雲為何。

來源: 郭大平於 2023-09-06 10:40:47 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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