I believe this is the first amendment. "Congress shall make no law prohibiting... or abridging the freedom of speech, or of the press..."
C
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The story is basically saying that we can learn from our elders, because they have been around longer and have more experience than us.
You can see this when it says "the tree is older than you are...you might find stories in its branches".
I presume this is from Lewis Carol's nonsense poem "Jabberwocky," when he uses the phrases "vorpal" it means deadly. A deadly sword.