作战虽然讲究排兵布阵，但士兵的勇敢是其中的根本;丧葬虽然讲究礼节，但对亲人的哀思是其中的根本;一个人虽然很有学识，但思想道德、行为举止是其中的根本。

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.

科学是理解宇宙语言的艺术。

钢铁塑造了过去，但创新将决定它的未来。

The science of government it is my duty to study, more than all other sciences; the arts of legislation and administration and negotiation ought to take the place of, indeed to exclude, in a manner, all other arts.

Survival can be summed up in three words – never give up. That’s the heart of it really. Just keep trying.