一个民族的活力与他们所生活的气候能量有关。

预测未来的最好方法就是创造它。

The security dilemma is a fundamental feature of international politics, as states' efforts to increase their own security often decrease the security of others.

我不是那种会让对竞争的爱减少的人。

The biggest risk is not taking any risk. In a world that is changing quickly, the only strategy that is guaranteed to fail is not taking risks.