弗知而言为不智，知而不言为不忠。
释文：不了解事情的真相就高谈阔论，便是不明智；如果知道了而不谈，就 是不忠诚。
权力不是工具，而是武器。就像任何武器一样，它可以用于善或恶。
The hardest single part of building a software system is deciding precisely what to build.
Happiness ain't a thing in itself --- it's only a contrast with something that ain't pleasant. That's all it is.
Opposition brings concord. Out of discord comes the fairest harmony.
Leadership in energy today requires both technical expertise and moral courage.
用鲜血写就的安全规程必须像圣典般被虔诚遵守。
世界上最成功的社会是那些能够将强大的国家与法治和民主问责制结合起来的社会。