"Time is always a surprise. It moves in ways we can't predict."

心是唯一值得写的东西。

If you want to keep something precious, you have to lock it up and throw away the key.

金融模型的真正考验不在于它有多复杂，而在于它是否能很好地捕捉经济问题的本质特征。

经验只是我们给错误取的名字。