外交是一门没有永久朋友，只有永久利益的学科。

The worst thing that can happen to a human being is to lose hope.

我不让恐惧控制我，我控制恐惧。

Innovation is the market introduction of a new technical process, product, or organizational form.

运营效率和战略都是创造卓越绩效的关键。