Just on that day, I told mother, "Mom, you have been aged, no longer need to live in such careful way."

就在那一天，我对母亲说，妈，你已经老了，再不要活得那样小心了。

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Afterward, during the book signing, a middle-aged woman said something that I'll always remember: "If only my teachers taught history like you just did, I would have been a history major."

后来，签名售书的时候，一位中年女子说了一些话，我一直记得：“假如我的老师们用你刚才的方式教历史的话，我应该会主修历史专业了。”

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