克服困难就是赢得机遇。

The great powers are always searching for opportunities to gain power at the expense of their rivals, and they will use force if they think it will profit them.

最好的领导者是那些为他人服务的人。

如果你停下来听一个音乐家或街头艺人表演超过一分钟，你就欠他们一美元。