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。
The truth is, we are all capable of great evil and great good. It is the choices we make that define us.
The study of psychology is the study of life in action.
最强大的生态系统是那些具有多样性的生态系统。