History is that certainty produced at the point where the imperfections of memory meet the inadequacies of documentation.
Efficiency without ethics is just speed in the wrong direction.
柴油发动机是当今已知效率最高的原动机。
我们唯一需要害怕的就是害怕本身。
It seemed the world was divided into good and bad people. The good ones slept better ... while the bad ones seemed to enjoy the waking hours much more.
The more you know, the more you realize you don't know.