He was disillusioned by the failure of his attempts to reform mathematics teaching at the École Polytechnique, where he had made energetic and determined efforts to combat the emphasis on theory of A-L Cauchy... Prony seems to have lost heart for the continuing struggle and to have been less conscientious with regard to his duties as examiner.
Siya ay disillusioned ng kabiguan ng kanyang mga pagtatangka upang pabutihin ang pagtuturo sa matematika at sa École Polytechnique, kung saan ginawa niya maliksi at tinutukoy na pagsisikap na labanan ang diin sa teorya ng City Cauchy... Prony parang may nawala sa puso para sa patuloy na pakikibaka at sa matapat ay mas mababa sa alang-alang sa kanyang tungkulin bilang tagasuri.