Partly the lack of mathematical drive in his early career had been due to his extreme modesty, so his friendship with Study was an important factor in turning him towards important problems and his subsequent rise to fame.
Bahagyang ang kakulangan ng matematika drive sa unang bahagi ng kanyang karera had been dahil sa kanyang matinding-loob, kaya ang kanyang friendship na may-aaral ay isang mahalagang kadahilanan sa pagpalit sa kanya sa mahalagang mga problema at kasunod na sanhi ng kanyang karangalan.