Complexity: A Guided Tour by Melanie Mitchell, 2009, p. 151 : "In the early 1980s, Stephen Wolfram, a physicist working at the Institute for Advanced Study in Princeton, became fascinated by cellular automata and the patterns they make. Wolfram is one of those legendary child prodigies people like to tell stories about. Born in London in 1959, Wolfram published his first physics paper at 15. Two years later, in the summer after his first year at Oxford,... Wolfram wrote a paper in the field of "quantum chromodynamics" that attracted the attention of Nobel-Prize-winning physicist Murray Gell-Mann, who invited Wolfram to join his group at Caltech…"
PHYSICIST AWARDED 'GENIUS' PRIZE FINDS REALITY IN INVISIBLE WORLD, by GLADWIN HILL, New York Times, 24 May 1981 : "When I first went to school, they thought I was behind, he says, because I didn't want to read the silly books they gave us. And I never was able to do arithmetic. It was when he got into higher mathematics, such as calculus, he says, that he realized there was an invisible world that he wanted to explore."
A Speech for (High-School) Graduates by Stephen Wolfram (a commencement speech for Stanford Online High School), StephenWolfram.com, 9 June 2014 : "You know, as it happens, I myself never officially graduated from high school, and this is actually the first high school graduation I've ever been to."