Beautiful Mind, A

Exhorting his students to be independent thinkers, Lefschetz thought originality was "above everything." John Nash completely agreed. He was a loner who worked out math problems in his head, often whistling Bach as he walked around the Princeton campus.

Not content with the merely difficult, Nash worked on math problems that seemingly had no solution. Most of his contemporaries at Princeton thought he was "immensely strange" and "arrogant."

One of his graduate students at M.I.T., where the young professor was a "C.L.E. Moore Instructor," disagreed with those descriptions. Alicia Larde, a beautiful physics student from El Salvador, fell in love with Nash:

He was very, very good looking, very intelligent...It was a little bit of a hero worship thing.

John and Alicia married in 1957, while Nash (on sabbatical from M.I.T.) spent a year at Princeton's Institute for Advanced Study. (He had been awarded an Alfred P. Sloan grant.) Dr. Nash recalls this time of his life:

While I was on the academic sabbatical of 1956-1957 I also entered into marriage. Alicia had graduated as a physics major from M.I.T. where we had met and she had a job in the New York City area in 1956-1957. She had been born in El Salvador but came at an early age to the U.S. and she and her parents had long been U.S. citizens, her father being an M.D. and ultimately employed at a hospital operated by the federal government in Maryland.

The following year, Alicia was pregnant with John Charles Martin Nash. Months later, their world fell apart.

John Nash, the genius mathematician, had become John Nash, a paranoid schizophrenic.

He was 30 years old.