矿工的安全永远不应该用成本效益分析来衡量。

一生的特权就是做你自己。

"In the end, it is the stories that survive us."

The key to understanding human cognition is to understand how symbols are manipulated.

追求知识是一场没有终点的旅程，而这正是它令人兴奋的地方。