最大的风险就是不冒任何风险。在一个快速变化的世界里，唯一注定失败的策略就是不冒险。
In mathematics, the journey of discovery is as important as the destination.
Don't try to win a friend by presenting gifts。You should instead contribute your sincere love and learn how to win others 'heart through appropriate ways.
The problem isn't that Johnny can't read. The problem isn't even that Johnny can't think. The problem is that Johnny doesn't know what thinking is; he confuses it with feeling.