"For John Urschel, what began as an insatiable appetite for puzzles as a child quickly evolved into mastery of the elegant systems and rules of mathematics. By the time he was thirteen, Urschel was auditing college-level calculus courses. But when he joined his high school football team, a new interest began to eclipse the thrill he once felt in the classroom. Football challenged Urschel in an entirely different way, and he became addicted to the physical contact of the sport. Accepting a scholarship to play football at Penn State, Urschel refused to sacrifice one passion for another, and simultaneously pursued his bachelor's and then master's degrees in mathematics. Against the odds, Urschel found a way to manage his double life as a scholar and an athlete, and so when he was drafted to the Baltimore Ravens, he enrolled in his PhD at MIT. Weaving together two separate yet bound narratives, Urschel relives for us the most pivotal moments of his bifurcated life. He explains why, after Penn State was sanctioned for the acts of former coach Jerry Sandusky, he turned his back on offers from Ivy League universities and refused to abandon his team, and contends with his mother's repeated request, at the end of every season, that he quit the sport and pursue a career in rocket science. Perhaps most personally, he opens up about the correlation between football and CTE, and the risks he took for the game he loves. Equally at home with both Bernard Riemann's notion of infinity and Bill Belichick's playbook, Urschel reveals how each challenge - whether on the field or in the classroom - has brought him closer to understanding the two different halves of his own life, and how reason and emotion, the mind and the body, are always working together"--