他就像一个在公园里无忧无虑漫步的人一样，好像穿着一件隐形的外套，可以屏蔽监狱里的纷扰。

每个矿工的贡献对于保持灯火通明至关重要。

创新不仅仅是技术的问题，更是改变人们思维和工作方式的问题。

A sound mind in a sound body, is a short, but full description of a happy state in this World: he that has these two, has little more to wish for; and he that wants either of them, will be little the better for anything else. Men’s happiness or misery is most part of their own making. He, whose mind directs not wisely, will never take the right way; and he, whose body is crazy and feeble, will never be able to advance in it.

书籍可能是危险的。最好的那些应该被贴上“这可能会改变你的人生”的标签。

Forgetting is the only victory over death.