旋风不能奏出动听的音乐；心灵手巧的妇人未必能够主持好饮食家务；（只会）做文章的读书人不能够治理好国家。

免疫系统就像一把双刃剑；它可以对抗癌症，但也需要被控制。

"Science is the highest personification of the nation because that nation will remain the first which carries the furthest the works of thought and intelligence."

解释：货卖完了才知道不足，是由于不懂得计量；事情结束了才知道有余，是由于不懂得调节。

We are all time capsules carrying fragments of the past.