The true value of a forest is measured not just in board feet, but in biodiversity and ecosystem health.

"In the end, we will remember not the words of our enemies, but the silence of our friends."

"The past is always with us, and it shapes who we are."

选择最好的生活，因为习惯会使它愉快。

我发现人很令人困惑。这主要有两个原因。第一个是人们经常不用任何语言说话。

"Ein Buch ist wie ein Garten, den man in der Tasche trägt."

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.

Experience is a good school, but the fees are high.