这种互相转化是思想最重要的规定之一。

This mutual revulsion is one of the most important laws of thought.

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这种无限进展乃是互相转化的某物与别物这两个规定彼此交互往复的无穷进展。

It sets up with endless iteration the alternation between these two terms, each of which calls up the other.

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爱因斯坦宣称，物质与能量是可以互相转化的，因此，没有“绝对的”时间和空间。

Einstein claimed that matter and energy are interchangeable, so that there is no "absolute" time and space.

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