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 best performance improvement is the transition from the nonworking state to the working state.

If you worried about falling off the bike, you'd never get on.

不要害怕失败。要害怕不去尝试。