Economic history teaches us that change is possible, but it is rarely easy.
经济史告诉我们,改变是可能的,但很少是容易的。
"In the silence between words, we find the truth."
如果没有模型,我们在预测气候变化方面将如同在黑暗中摸索。
事物背后必定隐藏着某些极为深奥的东西。