The truth is, we are all capable of great evil and great good. It is the choices we make that define us.
真相是，我们都有能力做出极大的恶和极大的善。是我们做出的选择定义了我们。
Natural experiments can provide valuable insights into economic questions.
"I believe that every child deserves to see themselves in the books they read."
To write is to make the invisible visible.
Love is the only thing that grows when we share it.
灵魂被其思想的颜色所染色。