This was still as a direct result of the damage which he had suffered when shot during World War I. He recovered from the heart attack and things began to look up when he was offered a chair of mathematics as Illinois Institute of Technology.
Ito ay pa rin bilang isang direktang resulta ng mga pinsala na kung saan siya had suffered kapag ng baril sa panahon ng World War I. Siya mababawi mula sa mga atake sa puso at mga bagay-bagay ay nagsimulang maghanap kapag siya ay inaalok ng isang upuan ng matematika bilang Illinois Institute of Technology.