Since he had been so happy at MIT and also believing it to be the leading institution, he approached the head of physics, John Slater, requesting that he stay on to take a Ph.D. course. Slater told him that for his own good he had to move and he suggested Princeton.
Since niya na kaya masaya at MIT at din paniniwalang ito na ang nangungunang institusyon, he approached ang ulo ng physics, John Slater, humihiling na siya ay manatili sa sa isang Ph.D. kurso. Mahigpit na manunuri Sinabi niya na para sa kanyang sariling mabuting niya upang ilipat at siya ang iminungkahing Princeton.