In other words, my belief-- and I am going to back that up with research today and for the next semester-- is human nature is fixed.

换言之，那是我相信的观点-,我会用三个研究加以证明，从今天开始,直到下个学期-,人类本性是固有的。

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If I then put it back into its original condition, lower the heat say, temperature back to body temperature and reduce the pH down to seven again, the molecules will re-nature.

假如我把烧杯的温度恢复到初始状态,降低温度,温度降低到体温,将pH值降低到七,这些分子会复性

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