写作需要一颗心。没有激情，我什么都不是。
I need a heart to write. Without passion, I am nothing.
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 truth is rarely pure and never simple.