The great secret that all old people share is that you really haven't changed in seventy or eighty years. Your body changes, but you don't change at all. And that, of course, causes great confusion.

解释：德行不够优良的人，难以有崇高的信念与理想。才能不够突出的人，难以有渊博的知识和见解。

The bond market is the ultimate barometer of investor sentiment.

Love is not kind or honest and does not contribute to happiness in any reliable way.

多样化是金融中唯一的免费午餐，但它需要纪律和耐心。

The essence of causal inference is to go beyond the data and ask what would happen if we intervene.

——赫尔曼·梅尔维尔

The truth is not always comfortable, but it is necessary.