The essay inspects the history from traditional alchemy, mediCal chemistry to the issue of "element theory"by Boyle, which is an important stip of the modern chemistry.

本文考察了从传统炼金术在由医药化学环节，到波义耳提出“元素说”，从而迈出近代化学关键一步的 历史脉络；

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Mr. Yu Heqin (1879-1944) is one of the memorable scholars in the history of modern Chinese chemistry.

虞和钦（1 879— 1 944年）是中国近代化学史上值得纪念的学者之一。

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And there will be a little bit of history in there, but this is mostly modern chemistry and represents the basic properties of matter, and it's basic properties of all matter, including living matter, which was what really interested me, that connection between chemistry and biology.

它们都有一些历史，但都是最现代的化学,代表了物质的最基本的性质，而且是所有物质的最基本性质，包括生物，这个让我很感兴趣，因为它连接着化学和生物学。

麻省理工公开课 - 化学原理课程节选