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。

Our wisdom comes from our experience， and our experience comes from our foolishness.

I’m convinced that about half of what separates the successful entrepreneurs from the non-successful ones is pure perseverance.

狐狸为自己提供，但上帝为狮子提供。