 Although Braille was admired and respected by his pupils , his writing system was not taught at the Institute during his lifetime . The successors of Valentin Haüy , who had died in 1822 , showed no interest in altering the established methods of the school , and indeed , they were actively hostile to its use . Dr. Alexandre François @-@ René <unk> , headmaster at the school , was dismissed from his post after he had a history book translated into braille . 
