法律与道德的分离是法律体系存在的必要条件。

成功辨识的关键是找到一个足够灵活的模型结构，以捕捉系统的基本特征，同时又足够简单，可以从现有数据中估计出来。

对于联邦住宅抵押贷款公司Freddie Mac的看法

Give a man a fire and he's warm for a day, but set fire to him and he's warm for the rest of his life.

"I think it's important to write about real life, even if it's tough."

我不想成为流行明星，我想成为传奇。