The Jerusalem Duality
Season 1, Episode 12 - Aired April 14, 2008

Sheldon is rattled when a 15-year-old physics prodigy, Dennis Kim, visits the university. Sheldon loses faith in his own work in the presence of the boy genius, so he decides to leave theoretical physics behind and focus on obtaining the Nobel Peace Prize. Concerned by Sheldon's career turn, the guys seek to derail Dennis Kim's progress.