The great challenge of our time is to create a world order that is both just and sustainable.
我们这个时代的巨大挑战是创建一个既公正又可持续的世界秩序。
史记
I'm not a present, I'm a gift.
A mathematician is a person who can find analogies between theorems; a better mathematician is one who can see analogies between theories and the best mathematician can notice analogies between analogies.
Every word is a step towards understanding.
每个城市都有自己的心跳，如果你仔细聆听，就能听到它的故事。