兩千年裏，螺旋式上升也就幾百年。科學革命到現在已經四百年了。好好留心：有多少人是一代不如一代的。

來源: ScottGu 於 2024-09-21 07:23:39 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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