每一次表演都是新的挑战。

一个人教养的考验在于他们在争吵中的表现。

你国家睡不着觉是因为我。

The opening up of new markets, foreign or domestic, and the organizational development from the craft shop and factory to such concerns as U.S. Steel illustrate the same process of industrial mutation—if I may use that biological term—that incessantly revolutionizes the economic structure from within, incessantly destroying the old one, incessantly creating a new one.

写作是一种见证的方式。

电的定律如此简单，可以用几行字表达，却又如此多样，其后果永远无法穷尽。