激情是普遍的人性。没有它，宗教、历史、浪漫和艺术都将毫无用处。

"What is said cannot be unsaid, and what is heard cannot be unheard."

最伟大的思想冒险往往始于一个简单的"如果"。

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.

The historian is both detective and storyteller.

The play was a great success, but the audience was a disaster.

The waterfall sing,"I find my song,when I find my freedom."