The Nobel laureate who rebuilt quantum mechanics as a sum over every possible history, drew the diagrams that organised particle physics, and first imagined the quantum computer. Richard Feynman is the physicist almost everyone can picture, the bongo-playing, safe-cracking, plain-spoken genius who seemed to enjoy science more than anyone around him. Beneath the showmanship sat one of the most original minds of the twentieth century, a thinker who rebuilt quantum mechanics from the ground up and handed working physicists a set of tools they still cannot do without. His path integral reframed how a quantum particle moves, his diagrams turned forbidding calculations into sketches, and his restless curiosity reached from the smallest particles to the first idea of a quantum computer. What set Richard Feynman apart was not raw cleverness alone, since the field had no shortage of brilliant people. It was an insistence on understanding things his own way, from the foundations up, and a refusal to accept any explanation he could not rebuild for himself. That habit produced a body of work that runs through modern physics like a watermark, and a teaching legacy that still shapes how the subject is learned. The making of a Manhattan prodigy Richard Feynman was born in New York City in 1918 and grew up in Far Rockaway, encouraged by a father who taught him to question the names of things and look for the mechanism underneath. He studied at the Massachusetts Institute of Technology and then at Princeton, where he worked under John Wheeler and began developing the ideas that would define his career. Even as a student he had a reputation for solving problems by inventing his own methods rather than following the textbook. The Second World War pulled him to Los Alamos, where he became one of the youngest