出自晋·葛洪《抱朴子·博喻》。用美玉做成的船和桨,不能用于水上航行;用黄金做弓,玉石做弦,仍没有射箭的功能。(笔杆子 rendoc.com)
You have to be willing to sacrifice who you are for who you will become.
"To understand a society, look at its trash."
大海不拒绝水流,所以成其大;高山不拒绝石块,所以成其高。