We don't just mine coal, we power the nation.

翻译：君主不应该因为发怒而兴兵，将领也不应该因为发怒而出战。符合国家利益就行动，不符合国家利益就停止。愤怒可以转变为欢喜，恼怒也可以转为喜悦，但国家灭亡了就不能再建立，人死了就不能复活。

Justice delayed is justice denied.

The desire for recognition, the thymotic part of the soul, is the most fundamentally human part of the soul.

强调历史研究既要理解历史背景，又要保持学术批判性。

I think it would be a disaster. The extraterrestrials would probably be far in advance of us. The history of advanced races meeting more primitive people on this planet is not very happy, and they were the same species. I think we should keep our heads low.

"The legacy of a scientist is not in the papers published, but in the minds inspired."