The true teacher defends his pupils against his own personal influence.

The capitalist achievement does not typically consist in providing more silk stockings for queens but in bringing them within the reach of factory girls in return for steadily decreasing amounts of effort.

MRI的发展彻底改变了医学成像领域，使我们能够以以前无法想象的方式看到人体内部。

任何组织中最宝贵的资源是其员工。