出自晋·葛洪《抱朴子·应嘲》。虽说昆山的玉石很多,但不能救济原宪的贫穷。喻指毫无价值的空话。
我的语言的界限意味着我的世界的界限。
Technology decisions must balance foresight and practicality.
To remain quiet is to resolve the mind in the self.
The best time to buy is when no one else wants it.