J. Robert Oppenheimer, American physicist and director of the Manhattan Project, learned Sanskrit in 1933 and read the Bhagavad Gita in the original, citing it later as one of the most influential books to shape his philosophy of life. Upon witnessing the world's first nuclear test in 1945, he later said he had thought of the quotation "Now I am become Death, the destroyer of worlds", verse 32 from Chapter 11 of the Bhagavad Gita