Happy Anniversary Cryptic!

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The doors of wisdom are never shut. - 'Socrates'
Thanks so much 15 years eh. Where does the time go.
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Did you know that BATMAN has a code word to ask SUPERMAN for help because he has trouble saying he needs help.
The word is Banana Muffin.



A system of cells interlinked
Happy Anniversary!
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“It takes considerable knowledge just to realize the extent of your own ignorance.” ― Thomas Sowell