Empty Vessel

This might be the worst blog in the history of blogging ever but just put up with it anyway. Since I have given the name Empty Vessel to my blogsite, I thought I ought to write something about an empty vessel. You might all know from where this particular adjective-noun pair 'empty vessel' comes from. For those of you who dont, its come from the adage 'Empty vessels make more noise'. It means that people who are empty (not physically but mentally) make more noise than those who area "not empty". But its a stupid comparisson anyway, that of an empty vessel and an empty human being. Instead of making the whole thing easier by just saying 'empty man makes more noise', why should it even be with an empty vessel. I just dont get what fun people get by phrasing such meaningless phrases. No use in using metaphors at wrong places while you can convey something directly which would make more sense. Its like saying 'Opportunity knocks the door only once', like as if opportunity could actually knock the door or even ring the bell for that matter. Its not a poem or something in which everything beautiful must be compared with mountains and valleys and everything evil must be compared with the 'thundering thunderstorms' or something.
Ok, I was just rambling in the above paragraph. Now coming back to our main topic empty vessel. Thinking physicscally (thats not a spelling mistake, I dont mean physically but physicscally), can an empty vessel ever be empty at all? That is so not possible because even if the vessel does not contain anything solid or liquid, it will definitely conatin some gases like oxygen, nitrogen, etc. Even if it does not have any gas in it, it will be filled with vacuum. Here we assume vacuum as an existential entity. When there are so many complications and controversies surrounding this 'empty vessel', how can we just use it casually. I am going to demand a retraction and a public apology from the the person who coined it.
Lets look at the whole thing Psychologically . Who is supposed to be an empty vessel, someone who is empty? if so, what are the standards or benchmarks that assist in judging if a person is empty or not? The whole thing depends on an individuals perspective. Someone who might seem empty to me might seem like the most knowledgeable person to another person (probably to himself). What makes someone decide that one particular person is empty? probably because the very person who decides is as empty as the person who he thinks is empty. No one is empty. Every single person has something in him which makes him 'not empty'. Whether he publicizes that 'something' or not is a totally different question all together.
Having read all the above 3 paragraphs, I hope you roughly get an idea of how we go about with our written exams. We can go on and on for pages about any trivial a topic like this. We are qualified to do that but if you try to make some sense out of it, its at your own risk. if you end up thinking if you are an empty person, yes you are. If you end up thinking if I am an empty person, yes I am. If you dont end up having any questions, please read the whole thing again until you find one.