The most prolific mathematician of all time, Paul Erdős, justified his amphetamine usage in similar terms [1]:
"After 1971 he also took amphetamines, despite the concern of his friends, one of whom (Ron Graham) bet him $500 that he could not stop taking the drug for a month. Erdős won the bet, but complained that during his abstinence mathematics had been set back by a month: 'Before, when I looked at a piece of blank paper my mind was filled with ideas. Now all I see is a blank piece of paper.' After he won the bet, he promptly resumed his amphetamine use."