“Now, I am become Death, the destroyer of worlds.”

“My childhood did not prepare me for the fact that the world is full of cruel and bitter things.”

“In some sort of crude sense, which no vulgarity, no humor, no overstatement can quite extinguish, the physicists have known sin; and this is a knowledge which they cannot lose.”

“Now I am become death, the destroyer of worlds. (quoting the Bhagavad-Gita after witnessing the first Nuclear explosion.)”

“The experience of seeing how our thought and our words and our ideas have been confined by the limitation of our experience is one which is salutary and is in a certain sense good for a man's moral...”

“There are no secrets about the world of nature. There are secrets about the thoughts and intentions of men.”

“Here at great expense,' [Colonel Groves] moaned to Oppenheimer, 'the government has assembled the world's largest collection of crackpots.”

“Here at great expense,' [Colonel Groves] moaned to Oppenheimer, 'the government has assembled the world's largest collection of crackpots.”

“Beneath the violet pillar, in the vacuum before the roar of the cloud, there came a soft sound that might have been heard by those who listened closely: the gentle sigh of an idea unbound.”

“I do not know what I may appear to the world, but to myself I seem to have been only like a boy playing on the sea-shore, and diverting myself in now and then finding a smoother pebble or a prettie...”

“To know the history of science is to recognize the mortality of any claim to universal truth. ”

“The scientist only imposes two things, namely truth and sincerity, imposes them upon himself and upon other scientists.”