无论我们承认与否，过去始终存在。

真相并不总是美丽的，但追求真相总是美丽的。

The idea of revolution is an adolescent fantasy.

能源领域的真正领导力意味着平衡今日的需求与明日的可能性。

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 world is a book, and those who do not travel read only one page.

自由的代价是永恒的警惕。