Paul Erdős – N is a number – The man made of maths
This guy was deeply plugged into the machinery of the universe. Long documentary, but worth it.

Paul Erdős (Hungarian: Erdős Pál, pronounced [ˈɛrdøːʃ ˈpaːl]; 26 March 1913 — 20 September 1996) was a Hungarian mathematician. Erdős published more papers than any other mathematician in history, working with hundreds of collaborators. He worked on problems in combinatorics, graph theory, number theory, classical analysis, approximation theory, set theory, and probability theory.
He is also known for his “legendarily eccentric” personality.

“When asked what the really important things he wants to do with his life, he often says to him it is to find new results and try to prove them. Of course he has a side comment here, which is a running joke, which he calls the SF, by that he means ‘god’ or whoever is watching down, and he has a perverse view of the almighty, feeling that its gods job to try to make people unhappy. So, to get even, it’s part of his mission is to try and annoy what he calls the SF, the supreme fascists. The Significant Few.”

Erdos was without a doubt one of the most prolific mathemeticians of the 20th century, and curiously a nearly daily user of methamphetamine, which he rarely publicly admitted for fear of proliferating the idea that drug use is acceptable. He was still going strong well into his later years, even though most great mathematicians loose their abilities around the age of 40 or so. His friends made a bet with him for $500 that he couldn’t quit meth for 30 days, he won the bet, but later remarked that they had set the progress of mathematics back a month.