The structure of the international system, not the intentions of individual states, is the primary determinant of state behavior.

最高的艺术是隐藏艺术。

我们的目标是让消费者以最低的价格买到最好的商品。

The interplay between discrete and continuous mathematics is where some of the most interesting problems lie.

I believe in the power of subtlety in performance. Sometimes, the smallest gestures can convey the deepest emotions.