First, there is an observational trend, represented by the Ionian physicists and Democritus, which proposed specific substances operating in our environment as the basis of life.

第一个是由爱奥尼亚物理学家和德谟克利特提出的观察倾向，它提出我们环境中存在的特别物质是生命的根本。

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Like Democritus and other Presocratics before him, Epicurus rejected the idea of anthropomorphic gods who were cognisant of human affairs.

就像在他之前的德谟克利特和苏格拉底之前的哲学家一般，伊壁鸠鲁识到人类事务的概念而拒绝了拟人化的神的观念。

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And, Democritus moves from practice to theory.

德谟克利特从理论实践转变。

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We started with just the seven metals and carbon plus sulfur, it was the point of departure for Democritus.

我们开始讲了7种金属,还有碳和硫磺，那就是Democritus的起点。

麻省理工公开课 - 固态化学导论课程节选

And, Democritus moves from practice to theory.

德谟克利特从理论实践转变。

麻省理工公开课 - 固态化学导论课程节选

And, what did Democritus do?

德谟克利特做了什么呢？

麻省理工公开课 - 固态化学导论课程节选