恐惧可以是一个有用的信号，但它不应该是我们唯一倾听的声音。

The mind is divided into parts that sometimes conflict. Like a rider on the back of an elephant, the conscious, reasoning part of the mind has only limited control over the automatic, emotional part.

历史研究不仅关乎过去，也关乎理解现在和预见未来。