▁ex iled ▁for ▁several ▁years ; ▁thus ▁he ▁was ▁forced ▁to ▁finish ▁his ▁medical ▁training ▁in ▁Kaz an . ▁Be in ▁author ed ▁many ▁technical ▁books ▁and ▁articles , ▁and ▁founded ▁the ▁Wars aw ▁O ph th al mic ▁Institute ▁and ▁the ▁Polish ▁O ph th alm ological ▁Society . ▁He ▁was ▁also ▁a ▁noted ▁amateur ▁photograph er . ▁ ▁Es per anto ▁movement ▁Be in ▁was ▁among ▁the ▁earliest ▁ad op ters ▁of ▁Es per anto , ▁the ▁international ▁language ▁that ▁had ▁been ▁created ▁by ▁a ▁fellow ▁Polish ▁o ph th alm ologist , ▁Lud wik ▁Z amen hof . ▁ ▁Be in ▁became ▁an ▁em inent ▁pione er ▁of ▁Es per anto ▁pro se , ▁writing ▁under ▁the ▁pseud onym , ▁" K abe ," ▁an ▁abbre viation ▁of ▁his ▁actual ▁name ▁( and ▁also ▁the ▁Polish ▁pron unci ation ▁of ▁his ▁initial s , ▁" K . B ." ). ▁In ▁ 1 9 0 4 ▁he ▁gained ▁fame ▁with ▁his ▁translation ▁of ▁a ▁ 1 9 0 0 ▁novel ▁by ▁W ac ław ▁S ier osz ew ski , ▁D no ▁n ędzy ▁( The ▁Dep th s ▁of ▁Mis ery ; ▁Es per anto ▁title : ▁ ▁F undo ▁de ▁l ' ▁M iz ero ). ▁▁▁ ▁In ▁ 1 9 0 6 ▁Be in ▁became ▁vice - pres ident ▁of ▁the ▁Academy ▁of ▁Es per anto . ▁ ▁He ▁had ▁a ▁prof ound ▁influence ▁ ▁on ▁the ▁language ' s ▁early ▁development . ▁The ▁highlight s ▁of