Humanity's genius is to have always had a sense of its weakness. 人类的智慧在于总能感受到自身的脆弱

237. The city dweller buys, sells or barters.
     城市居民用来买♥♥卖♥♥或者易物交换
238. Goods change hands,
     商品不停易主
239. Along with ideas.
     思想随之传播
240. Humanity's genius is to have always had a sense of its weakness.
     人类的智慧在于总能感受到自身的脆弱
241. Humans tried to extend the frontiers of their territory,
     人类试图拓宽疆土
242. But they knew their limits.
     但他们知道自身能力有限
243. The physical energy and strength
     大自然并没有赐予人类

来自《家园 第一部分 Home Part1》第 240 行