Hmmm, I just looked up the Adept series and I don’t think that is it. In this book, the main character just would make up poems and magic would happen.
Oh, well --- the memory is always the second thing to go.
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RESISTOR
Swear allegiance to the flag, whatever flag they offer;
Never hint at what you really feel.
Teach the children quietly for, someday, sons and daughters
Will rise up and fight while we stood still.
Der Elite Møøsënspåånkængrüppen ØberKømmändø (EMØØK)
The Incomplete Enchanter - main character is Harold Shea.