文字的力量是巨大的；它们可以治愈，可以毁灭，最重要的是，它们可以改变。
The best management is a true science, resting upon clearly defined laws, rules, and principles.
The writer’s duty is to speak for those who cannot.
The concept of reducibility is central to understanding the relationships between different computational problems.
"The past is always tense, the future perfect."