From Wikipedia, the free encyclopedia
凡物氧化至劇，光熱並生，即火也。古人不明化學，遂列元素，中華五行、泰西四元素說皆如是。
華夏以燧人氏鑽木取火；希臘以普羅米修斯盜火。先民以火，離腥膻以達文明也。
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