这是最好的时代，这是最坏的时代。
我们被警告不要向这个民族的人提供虚假的希望。但美国不呢神就是个不可能的故事，从来没有任何希望是假的。
The writer must be a person who is willing to be misunderstood.
Today is cruel, tomorrow is crueler, and the day after tomorrow is beautiful. But most people will die tomorrow night, so don't give up today.
Own only what you can always carry with you: know languages, know countries, know people. Let your memory be your travel bag.
计算机科学中的真正挑战不是编写程序，而是理解计算的本质。