没有比复仇更昂贵、更没用的事情了。
The most important thing is to focus on the customer experience.
最伟大的定理是那些揭示隐藏联系的定理。
通过文学，我们可以探索人类经验的无限可能性。
静默时就能思考，说话时就能教导人，有符合道义的行为就能成就事业，如果这三者交替运用，就能成为圣人。
The laws that forbid the carrying of arms are laws of such a nature. They disarm only those who are neither inclined nor determined to commit crimes.... Such laws make things worse for the assaulted and better for the assailants; they serve rather to encourage than to prevent homicides, for an unarmed man may be attacked with greater confidence than an armed man.