The most important political development of the last half century has been the spread of liberal democracy around the world.
成功就是带着热情从一个失败走向另一个失败。
创新不仅仅是创造新事物，而是以最有效的方式解决实际问题。
科技领域最危险的话是"我们一直都是这么做的"。
发现的喜悦是科学家们前进的动力。
The dead are not gone; they are part of us.
Through writing, I try to understand the world, and also try to make the world understand me.
任何牺牲基本自由以换取短暂安全的人，最后既得不到安全也得不到自由。（放弃基本的自由以换取苟安的人，终归失去自由，也得不到安全。）
The most dangerous kind of waste is the waste we do not recognize.
The market is always right, and the price is never too high to buy or too low to sell.