4 – 0 6 , ▁but ▁res igned ▁when ▁the ▁trust ees ▁were ▁concerned ▁about ▁his ▁doub ting ▁the ▁vir gin ▁birth . ▁ ▁In ▁ 1 9 0 8 ▁Kil pat rick ▁wrote ▁in ▁his ▁di ary , ▁" Pro f essor ▁De we y ▁has ▁made ▁a ▁great ▁difference ▁in ▁my ▁thinking ." ▁De we y ▁wrote ▁to ▁Professor ▁John ▁Ang us ▁Mac V annel , ▁Kil pat rick ' s ▁major ▁professor , ▁" He ▁is ▁the ▁best ▁I ▁ever ▁had ." ▁Kil pat rick ▁spent ▁the ▁rest ▁of ▁his ▁professional ▁career ▁and ▁long ▁life ▁at ▁Te ach ers ▁College , ▁Columbia ▁University ▁( T CC U ) ▁where ▁he ▁was ▁a ▁student , ▁ 1 9 0 7 – 0 9 ; ▁received ▁a ▁Ph . D . ▁in ▁ 1 9 1 2 , ▁was ▁lect urer ▁in ▁education , ▁ 1 9 0 9 – 1 1 ; ▁assistant ▁professor , ▁ 1 9 1 1 – 1 5 ; ▁associate ▁professor , ▁ 1 9 1 5 – 1 8 ; ▁professor ▁of ▁philosophy ▁of ▁education , ▁ 1 9 1 8 – 3 7 ; ▁and ▁there after ▁emer it us ▁professor . ▁ ▁He ▁married ▁Marie ▁B eman ▁Guy ton ▁on ▁December ▁ 2 7 , ▁ 1 8 9 8 , ▁and ▁they ▁had ▁three ▁children . ▁She ▁died ▁May ▁ 1 9 0 7 . ▁He ▁then ▁married ▁Margaret ▁Man ig ault ▁Pin ck ney ▁on ▁November ▁ 2 6 , ▁