Out, out, brief candle! Life's but a walking shadow, a poor player That struts and frets his hour upon the stage And then is heard no more. It is a tale Told by an idiot, full of sound and fury, Signifying nothing, 

"The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion."

以太网是一种共享介质，其成功的关键在于其简单性。