智者云：“话说出口之前，请三省自问。第一层自问，“信息是否为真？”，第二层自问：“有必要说么？”第三层自问：“是出于善意的么？”
"The only way to discover the limits of the possible is to go beyond them into the impossible."
中心地的等级越高，其服务的区域越大，此类中心地的数量越少。
The greatest reward is knowing that my music has made a difference in someone’s life.
It is not the voice that commands the story; it is the ear.
最好的想法往往来自那些最接近问题的人。