John Forbes Nash Jr., the only person to receive both Nobel Memorial Prize in Economic Sciences and Abel Prize, did not have it easy. A brilliant mathematician from the very start, he wrote many ground-breaking papers before he began to show signs of paranoia, being institutionalized for protracted periods for the ailment. After his release, he began where he left, eventually publishing his seminal work on game theory, now known as Nash equilibrium. In his interviews, talks and essays, he has talked openly not only about his works, but also about his life, his mental illness and recovery. Let us look at some of his thought provoking quotes mathematics, numbers, economics, history, research etc.