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。

To understand chemistry at its most fundamental level, we must look at the dance of electrons in molecules.

大海记得陆地遗忘的东西。

When you innovate, you've got to be prepared for everyone telling you you're nuts.