Discovery! Shakespeare was a teacher!

Not many people know that Shakespeare was for a while a teacher and found the whole language thing very problematic. In an old manuscript a draft of one part of the Witches' song from Macbeth has been found with Shakespeare's signature on the bottom:

Word of moth, phrase or label
Verbal nit and tongue of Mabel
Letters’ talk and this term’s pip
Wizard’s gag and omelettes’ quip
For a charm of powerful trouble
Like a well-goth, mix and muddle
Huddle, huddle, in the puddle
Why this term is such a muddle...

[Punctuation and spelling modernised]

Note: It's believed that Mabel was Shakespeare's lover from the Nag's Head in Shoreditch.