我们用数学来理解市场，而不是预测市场。
世界既广阔又狭小。
The general population doesn't know what's happening, and it doesn't even know that it doesn't know.
被爱的欲望也许是我们所有虚荣心中最根深蒂固的。
人心比山川更险恶，比了解天象更困难。
煤炭不仅仅是一种商品，它是对美国未来的承诺。