Two thoughts on responses
One thought, although Mr. Carnejo has an interesting observation about food, the proverbial knowledge is not comparable to food, or tastes of food, so although there is some reletive comparison, I don't think it really applys to this thought in this context.
About the overflowing cup,or growing bigger to accomandate the size of the cup ...
Well, from the time you were cognizant of being you as you learned to use the potty to the where you are today, did things seem to get smaller as you grew, or did things remain the same in your view of the world?
Of course you became accustomed to the body you inhabit as it grew, and made adjustments thereof, did you not? Nod your head ..
Well, although I have put it into the simplest of terms, so too does the knowledge of our growth match the growth of our spirit and our knowledge, at least it should.
Example of those whose cup is overflowing, in that situation we should bring about the either the analogy about growing from child to adult, or at least that of the wandering scout who wanders here and there to increase the boundarys of their knowledge, not just staying in one particular area.
Then I hear the old storys of never leave the boat, or the town as it contains everything you need or eventually everything you need or want will come to you if you wait long enough. There ain't that much time for you and me, there has to be some wandering to get into the harmony of life.
I have tried a few times to think of something that new teachers would understand, and although we really want to bring something to the table when we start a new martial art, the only emptying that should be done is to allow time to pass before you start to open your big mouth, or try to show what you have learned before.
Just like coming to Aikido from another art, until you can find the grey areas that cross over into aikido, you might as well wait until they come up before you introduce them into class,or bring them to anyones attention ... mostly ... they just won't get it.
The difficulty is not that we can't blend what we bring to Aikido, but the Aikido methods of teaching need to get a firm foundation before you can explain it in terms aikido people will understand.
I guess the bigger cup compares more to being a new language, a new way to see things .... from this point of view you have not emptied your knowledge to be a driveling idiot, but allowed yourself to grow so that all knowledge blends in a more harmonious manner.
Bigger cup. Harmonious blending.
Work it out.
Knowledge is not like food, nor is it wise to totally forget what you have learned. If it is a lifetime of use, absorbsion, use, and more absorbsion ... then why throw away a lifetime of learning? Why not consider each change of your life a movement into a larger arena that can never be filled?
Makes it a lot easier to not be a know it all, because the cup grows to the size if knowledge it will hold, and the goal posts are only as far as you are willing to go.
Maybe it is not a cup or goalposts, but our own humor that desires to see the irony rather than the harmony...
Honestly, I thought I would see a lot more negative posts on this old adage?