Most chemical changes, most physical changes don't happen in isolated systems.

但是大部分的化学反应,并不是发生在孤立系统中的。

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This idea that humans have evolved, that physical changes have occurred in humans as a consequence of their food environment, has led us to where we are now.

探讨人与食物的关系,探讨人类机体,由于食物环境而产生的变化,是我们今天坐在这里的原因

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That's a physical process that causes some sorts of changes in the mental processes occurring in my soul.

这是一个物理过程,它造成了,我灵魂中心灵过程的改变

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