译文：每个人的善、恶程度不同，本性与外表也是不一致的。有的人外貌温良却行为奸诈，有的人前恭谦却心怀狡诈，有的人看上去很勇敢而实际上却很怯懦，有的人似乎已竭尽全力但实际上却不忠诚。

Thinking consists in envisaging, realizing structural features and structural requirements.

当然，语言是人类使用的最强大的药物。

I like the night. Without the dark, we'd never see the stars.

The best leaders don't just manage; they inspire people to see possibilities where others see obstacles.

写中美洲就是写世界的心脏，尽管这颗心脏在流血。