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.

"A writer must be brave enough to confront the truths that others choose to ignore."

I don't sing to be perfect, I sing to be alive.

赏析：描述了人在梦中不知道自己在做梦，醒来后才知道是梦的现象，引发了对人生如梦的思考。

科学的美丽在于它揭示未知的能力。

Investing in clean coal technologies isn't an expense—it's an investment in our future.