2000). "The Gita of Robert Oppenheimer" (PDF). Proceedings of the American Philosophical Society 144 (2). Retrieved 2009-06-21. ^ Gladwell, Malcolm (September 2006). "No Mercy" (PDF). New Yorker . ^ Michelmore, Peter (1969). The Swift Years: The Robert Oppenheimer Story . Dodd, Mead and Company . ^ "The Eternal Apprentice" . Time .