) ▁in ▁the ▁canton ▁of ▁Val ais , ▁ ▁Switzerland , ▁ 1 4 ▁August ▁ 1 8 1 1 ; ▁d . ▁at ▁Bonn , ▁Germany , ▁ 1 7 ▁May ▁ 1 8 7 2 ) ▁was ▁a ▁Swiss ▁Jes uit ▁pre acher . ▁ ▁Life ▁Up ▁to ▁his ▁th ir teenth ▁year , ▁R oh ▁spoke ▁only ▁French , ▁so ▁that ▁he ▁had ▁to ▁learn ▁German ▁from ▁a ▁German ▁priest ▁in ▁the ▁vic inity ▁before ▁he ▁was ▁able ▁to ▁begin ▁his ▁g ymnas ial ▁studies ▁in ▁the ▁board ing - school ▁kept ▁by ▁the ▁Jes uits ▁at ▁Brig ▁in ▁Switzerland . ▁He ▁later ▁became ▁a ▁day - p up il ▁at ▁the ▁g ymnasium ▁kept ▁by ▁the ▁Jes uits ▁at ▁S itten . ▁While ▁there , ▁he ▁resolved ▁to ▁enter ▁the ▁Society ▁of ▁Jesus ▁( 1 8 2 9 ); ▁strange ▁to ▁say ▁the ▁external ▁means ▁of ▁bringing ▁him ▁to ▁this ▁decision ▁was ▁the ▁reading ▁of ▁Pascal ' s ▁pam ph let ▁Mon ita ▁Sec re ta . ▁▁ ▁He ▁taught ▁the ▁lower ▁g ymnas ial ▁classes ▁at ▁the ▁ly ce um ▁at ▁F rib ourg . ▁He ▁was ▁the ▁first ▁( 1 8 4 2 - 4 5 ) ▁professor ▁of ▁dog mat ics ▁at ▁F rib ourg , ▁then ▁at ▁the ▁a cademy ▁at ▁Luc erne , ▁which ▁had ▁just ▁been ▁given ▁to ▁the ▁Jes uits . ▁At ▁the ▁same ▁time , ▁R oh ▁pre ached ▁and ▁a ided ▁as ▁opportunity ▁occurred ▁in ▁miss ions . ▁These ▁lab