在经济学中，规则的小变化可能导致结果的大变化。

真相很少是纯粹的，也从不简单。

【讲解】：聪明的人不会疑惑，实行仁德的人会忧愁，真正勇敢的人，不会畏惧。

"To me, fearless is not the absence of fear. It's not being completely unafraid. To me, fearless is having fears. Fearless is having doubts. Lots of them. To me, fearless is living in spite of those things that scare you to death."

量子力学不仅仅是一个理论，它是一个从根本上改变了我们对现实理解的框架。