Productivity is being able to do things that you were never able to do before.
Leadership is about making tough decisions and standing by them.
The good life is using your signature strengths every day to produce authentic happiness and abundant gratification.
We are all haunted by the shadows of our former selves.
给定系统中的酸和碱不是绝对的，而是相互关联的。
To write is to create a world within a world.