The soul is placed in the body like a rough diamond, and must be polished, or the luster of it will never appear.

The world owes all its onward impulses to men ill at ease; the happy man inevitably confines himself within ancient limits.

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.

唯一能让你快乐的是你自己的微笑。

No one likes being alone. We just don't want to make friends reluctantly. If we did that, we'd probably just be disappointed.