经济学家必须贪婪地收集事实；但事实本身并不能说明什么。

"You can't manage what you don't measure."

对一个人而言，只要谨慎自信 ，没有什么是高不可攀的。

"I never think about what could go wrong. I only focus on what I need to do right."

每个展览都是可见的论点。