随机实验是因果推理的黄金标准，但它们并不总是可行的。

Diversity in thought and background leads to better solutions and stronger organizations.

Life is not what one lived, but what one remembers and how one remembers it in order to recount it.

文学是在平凡生活中发现非凡之处的艺术。

写作是一种存在的方式，一种在世界中存在的方式。