我不会让我的国家失望。

解释：我听说过用忠心善行来减少怨恨，没听说过摆出威严的架势来防止怨恨。

Leadership means having the courage to make tough decisions today for a better tomorrow.

The first step in the art of cutting metals is to find a man who has the necessary skill and experience to do the work.

The international system is inherently competitive, and states are constantly trying to outmaneuver each other.

所有企业需要永葆青春。如果客户群与你一起变老，你就会重蹈伍尔沃斯的覆辙。

数学之美在于它能够以精确而优雅的方式描述世界。