The balance of power is the only way to maintain peace in the international system.

Optimism is a strategy for making a better future. Because unless you believe that the future can be better, you are unlikely to step up and take responsibility for making it so.

In the search for new quantum materials, we are guided by the principles of topology and symmetry, which often lead us to discover materials with remarkable properties.

领导力是关于今天做出艰难的决定，这些决定将使未来的几代人受益。

"Kindness is a language that everyone understands."

我学到的最重要一课是相信自己。

I don’t care what you say about me as long as it’s not true.

写作的行为是一种勇气的行为，是对世界沉默的挑战。