J. Robert Oppenheimer was a theoretical physicist and the wartime head of the Los Alamos Laboratory during the Manhattan Project. He is credited with leading the scientific effort to develop the first nuclear weapons. Upon witnessing the first successful test (Trinity), he famously recalled a line from the Bhagavad Gita: 'Now I am become Death, the destroyer of worlds.' After the war, Oppenheimer became a central figure in the debate over nuclear control, opposing the development of the more powerful hydrogen bomb. His past political associations led to a high-profile security hearing in 1954, resulting in the revocation of his security clearance. His life story encapsulates the ethical dilemmas of modern science and the profound responsibility of scientists whose work can change the course of human history and the nature of warfare.