Maritime Provençal
Lou fourrié pas fouesso fusteja per n'en faire un imbecile.
Meaning
It would take little whittling to turn him into an imbecile.
Note : From the Celtic fust, a piece of wood cut lengthwise.
Theme
Source : La Tour-Keyrié, Recueil de proverbes provençaux (1882), Gallica — public domain. Maritime Mistralian normalisation by Lingua Nostra.