过去是参考的地方，不是居住的地方。
The great and chief end, therefore, of men's uniting into commonwealths and putting themselves under government is the preservation of their property.
要理解一个人，你必须先理解他们讲给自己的故事。
激光技术的每一次突破都让我们更接近解决困扰科学家数十年的谜题。
The key is to set realistic customer expectations, and then not to just meet them, but to exceed them — preferably in unexpected and helpful ways.
