词语的问题在于你永远不知道它们曾经过谁的嘴。
The problem with words is that you never know whose mouths they have been in.
War is an ugly thing， but not the ugliest of things； the decayed and degraded state of moral and patriotic feeling which thinks that nothing is worth war is much worse.
The more you know about yourself, the more patience you have for what you see in others.
The concept of NP-completeness has provided a powerful tool for understanding the complexity of problems.
最有力的故事是那些提出问题，而非给出答案的故事。
