Leadership is about vision and responsibility, not power.

Sustainability is not just a trend, it's a responsibility we owe to future generations.

The study of black holes has led us to the edge of our understanding, where the known laws of physics break down and new theories must emerge.

The worth of a state， in the long run， is the worth of the individuals composing it.

发现的关键不仅在于我们找到的答案，还在于我们敢于提出的问题。

外交是战争的延续，只不过用别的手段而已。