What a strange feeling it is surely we all know it to look through old letters of our young days;

我们都知道，假如我们把我们年轻时代的旧信拿出来读读，我们会产生一种多么奇怪的感觉啊！

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What a strange feeling it is—surely we all know it—to look through old letters of our young days; a different life rises up out of the past, as it were, with all its hopes and sorrows.

我们都知道，假如我们把我们年轻时代的旧信拿出来读读，我们会产生一种多么奇怪的感觉啊！ 整个的一生和这生命中的希望和哀愁都会浮现出来。

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We all surely know that smoking is really very, very bad for us.

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And in our guts we must surely know that once the papers are signed we will despite all promises to ourselves relax our vigilance in defending against chemical threats.

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If it were easy to become rich we all would be, but as the rich and poor alike know intimately, getting rich is surely glorious, but also very difficult.

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