写作是一种理解世界的方式，是在世界中找到自己位置的方式。

Common sense tells us that performance comes and goes, but costs go on forever.

The secret of getting ahead is getting started.

如果你不能安全地开采它，你根本不应该开采它。

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.

读书人不能不心胸宽广意志刚强，因为肩负重任而且征途遥远。他把实现仁的理想作为自己的使命，担子难道不重吗？他为这种理想而奋斗，直到死去为止，路途难道不远吗？

统治阶级掌握着物质生产的手段；无产阶级仅有的是他们的劳动力。