历史中的优点似乎有三种，一种是来自气候和国家的纯粹地理位置，一种是来自政府形式和人民性格，一种是来自那些更细致的哲学原则和道德，可以称为哲学的推荐。

The nightmare thought is that frightening people is the best way to get work out of them, and that somehow the crueler the environment, the more people will rise to the challenge. You want to think, who would you like as your ideal dad? And your ideal dad is somebody who is tough but gentle. And it's a very hard line to make. We need fathers, as it were, the exemplary father figures in society, avoiding the two extremes, which is the authoritarian disciplinarian on the one hand, and on the other, the lax, no-rules option.

数学的美只向更有耐心的追随者展示。

The world needs sustainable solutions, not just temporary fixes.