要解决复杂的问题，我们必须首先理解产生这些问题的系统。
Certification schemes are the grammar of responsible forestry—they give structure to our good intentions.
心灵是一个不断进化的经验流。
Leadership is about making tough decisions today that will benefit the company in the long run.
我不是英雄，我不是反派，我只是一个人。