Every mathematical problem has a solution; you just need to find the right perspective.
技术不仅仅是一种工具，它可以让学习者拥有以前可能没有的声音。
没有人喜欢孤独，只是不想勉强交朋友，要真那么做的话，恐怕只会失望而已。
伟大的公司建立在信任和诚信的基础之上。
The right of nature... is the liberty each man hath, to use his own power, as he will himself, for the preservation of his own nature; that is to say, of his own life.
