伟大表演的关键是倾听。如果你倾听，你会真实地反应。

理解计算的基本限制对于技术的未来至关重要。

音乐有治愈、激励和团结人们的力量。

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.