经济模型的价值在于其解释和预测的能力。
The value of an economic model lies in its ability to explain and predict.
Diplomacy is not a zero-sum game, but the art of finding common interests.
"In the end, we will remember not the words of our enemies, but the silence of our friends."
领导力就是今天做出艰难的决定，明天让所有人受益。
